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3G Evolution : HSPA and LTE for Mobile Broadband

Erik Dahlman, Stefan Parkvall, Johan Sköld, Per Beming
31 Jul 2007-
TL;DR: In this paper, the authors present a very up-to-date and practical book, written by engineers working closely in 3GPP, gives insight into the newest technologies and standards adopted by threeGPP with detailed explanations of the specific solutions chosen and their implementation in HSPA and LTE.
Abstract: This very up-to-date and practical book, written by engineers working closely in 3GPP, gives insight into the newest technologies and standards adopted by 3GPP, with detailed explanations of the specific solutions chosen and their implementation in HSPA and LTE. The key technologies presented include multi-carrier transmission, advanced single-carrier transmission, advanced receivers, OFDM, MIMO and adaptive antenna solutions, advanced radio resource management and protocols, and different radio network architectures. Their role and use in the context of mobile broadband access in general is explained. Both a high-level overview and more detailed step-by-step explanations of HSPA and LTE implementation are given. An overview of other related systems such as TD SCDMA, CDMA2000, and WIMAX is also provided.This is a 'must-have' resource for engineers and other professionals working with cellular or wireless broadband technologies who need to know how to utilize the new technology to stay ahead of the competition.The authors of the book all work at Ericsson Research and are deeply involved in 3G development and standardisation since the early days of 3G research. They are leading experts in the field and are today still actively contributing to the standardisation of both HSPA and LTE within 3GPP. * Gives the first explanation of the radio access technologies and key international standards for moving to the next stage of 3G evolution: fully operational mobile broadband* Describes the new technologies selected by the 3GPP to realise High Speed Packet Access (HSPA) and Long Term Evolution (LTE) for mobile broadband * Gives both higher-level overviews and detailed explanations of HSPA and LTE as specified by 3GPP
Citations
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Journal Article•DOI•
Cross-Layer Scheduling and Resource Allocation for Heterogeneous Traffic in 3G LTE

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Richard Musabe, Hadi Larijani
26 Aug 2014-Journal of Computer Networks and Communications
TL;DR: This paper investigates how the proposed algorithm improves the user satisfaction for heterogeneous traffic, that is, best-effort Traffic such as file transfer protocol (FTP) and real-time traffic such as voice over internet protocol (VoIP) using the cross-layer technique.
Abstract: 3G long term evolution (LTE) introduces stringent needs in order to provide different kinds of traffic with Quality of Service (QoS) characteristics. The major problem with this nature of LTE is that it does not have any paradigm scheduling algorithm that will ideally control the assignment of resources which in turn will improve the user satisfaction. This has become an open subject and different scheduling algorithms have been proposed which are quite challenging and complex. To address this issue, in this paper, we investigate how our proposed algorithm improves the user satisfaction for heterogeneous traffic, that is, best-effort traffic such as file transfer protocol (FTP) and real-time traffic such as voice over internet protocol (VoIP). Our proposed algorithm is formulated using the cross-layer technique. The goal of our proposed algorithm is to maximize the expected total user satisfaction (total-utility) under different constraints. We compared our proposed algorithm with proportional fair (PF), exponential proportional fair (EXP-PF), and U-delay. Using simulations, our proposed algorithm improved the performance of real-time traffic based on throughput, VoIP delay, and VoIP packet loss ratio metrics while PF improved the performance of best-effort traffic based on FTP traffic received, FTP packet loss ratio, and FTP throughput metrics.

9 citations

Cites background from "3G Evolution : HSPA and LTE for Mob..."

  • ...The third generation partnership project (3GPP) is a standards-developing body that specifies the 3G universal terrestrial radio access (UTRA) and global system for mobile communication (GSM) systems [1]....

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Journal Article•DOI•
The Effect of Signaling Rate on Information Rate for Single Carrier Linear Transmission Systems

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Dzevdan Kapetanovic1, Fredrik Rusek1•
Lund University1
23 Jan 2012-IEEE Transactions on Communications
TL;DR: It is shown that one can guarantee increasing information rate with increased signaling rate, no matter the pulse-channel shape (except for some hypothetical special cases), by signaling with an SNR above a certain finite threshold.
Abstract: We consider the effect of signaling rate (baud rate) on the information rate of single carrier linear transmission systems with Gaussian inputs. Several different communication scenarios are investigated: correlated or uncorrelated symbols, a fixed modulation pulse or a modulation pulse varying with the signaling rate and frequency selective or flat channels. For uncorrelated symbols, we show that the information rate grows monotonically with signaling rate for some cases while it can in fact decrease in other cases. Sufficient conditions on the modulation pulse and the channel impulse response are derived so that the information rate is increasing with increased signaling rate. Especially, these conditions give criterias for when non-orthogonal signaling is beneficial compared to orthogonal signaling in the case of flat fading. For modulation pulses varying with the signaling rate, it is shown that there are pulses for which the information rate is non-decreasing with increasing signaling rate. When correlation between symbols is allowed, we show that one can guarantee increasing information rate with increased signaling rate, no matter the pulse-channel shape (except for some hypothetical special cases), by signaling with an SNR above a certain finite threshold.

9 citations

Cites result from "3G Evolution : HSPA and LTE for Mob..."

  • ...In LTE, the up-link is implemented based on single carrier concepts [7] in order to maintain a low peak-to-average-power ratio (PAPR) - the most important feature of single carrier systems is superior PAPR compared with OFDM....

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Journal Article•DOI•
Performance Optimization on Dynamic Adaptive Streaming over HTTP in Multi-User MIMO LTE Networks

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Miao Zhao1, Bin Jia2, Jia Wang1, Mingquan Wu2, Heather Yu2 •
Hong Kong Polytechnic University1, Huawei2
01 Dec 2018-IEEE Transactions on Mobile Computing
TL;DR: A utility maximization framework (UMF) for DASH application delivered over MU-MIMO LTE downlinks is proposed and the NP-hardness of the scheduling problem is proved and a priority search algorithm is proposed to provide time-efficient solution.
Abstract: Recent years have witnessed the emergence and ongoing proliferation of dynamic adaptive streaming over HTTP (DASH 1), which reuses web servers with HTTP communication instead of relying on RTSP/RTP/RTCP-based media server and promises to be capable of automatically tuning to bandwidth dynamics. Aware of its excellent performance, the third generation partnership project (3GPP) long term evolution (LTE) has adopted DASH (with specific codecs and operating modes) for use over mobile wireless networks in order to realize ubiquitous multimedia delivery. In a multi-user multiple-input-multiple-output (MU-MIMO) LTE system, spatial multiplexing gain can be achieved by making sure the transmitter to deliver distinct data streams to multiple receivers simultaneously, which provides the choices to opportunistically schedule the preferred receivers each time for a common time-frequency resource. In such a system, one of the major challenges to enhance DASH performance is to design an effective scheduler that can fully enjoy the benefit of spatial reuse as well as guaranteeing satisfactory video services for all users. To this end, in this paper, we propose a utility maximization framework (UMF) for DASH application delivered over MU-MIMO LTE downlinks. In particular, we characterize DASH performance by a combined utility function in terms of average video rate, playback buffer status, and battery energy state. Correspondingly, we develop a utility-based scheduler that selects multiple user equipments (UEs) to share each common network resource under the consideration of precoding-based MU-MIMO links in order to maximize system-wide DASH performance. We prove the NP-hardness of the scheduling problem and propose a priority search algorithm to provide time-efficient solution. We further incorporate novel rate adaptation on the application layer for the scheduled UEs to dynamically set the requested encoding bitrates to explore the balance between agile responsiveness and shifting smoothness. Extensive system-level simulations with realistic video trace validate the effectiveness of our framework in terms of rate adaptability, playback buffer depletion percentage, and battery energy saving.

9 citations

Cites background from "3G Evolution : HSPA and LTE for Mob..."

  • ...In [8], a scheduler was presented for LTE networks in conjunctionwith adaptive streaming, which considers users’ link condition as well as the buffer states so as to maximize the number of satisfied customers....

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  • ...In a multi-usermultiple-input-multiple-output (MU-MIMO) LTE system, spatial multiplexing gain can be achieved bymaking sure the transmitter to deliver distinct data streams tomultiple receivers simultaneously, which provides the choices to opportunistically schedule the preferred receivers each time for a common time-frequency resource....

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  • ...In [10], Lee, et al. addressed packet scheduling in LTE MIMO downlink by determining each UE to work on either spatial multiplexing mode or transmit diversity mode....

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  • ...Aware of its excellent performance, the third generation partnership project (3GPP) long term evolution (LTE) has adopted DASH (with specific codecs and operatingmodes) for use overmobile wireless networks in order to realize ubiquitousmultimedia delivery....

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  • ...The basic network resource unit in LTE is regarded as resource block (RB), which consists of 12 contiguous OFDM subcarriers with a duration of 0.5 ms, consisting of 7 OFDM symbols....

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Proceedings Article•DOI•
A message passing approach for resource allocation in cellular OFDMA communications

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Andrea Abrardo1, Marco Belleschi2, Gabor Fodor3, Marco Moretti4•
University of Siena1, Ericsson2, Royal Institute of Technology3, University of Pisa4
01 Dec 2012
TL;DR: X-ReMP, a ReMP-based algorithm that combines cross-cell signaling and the regular ReMP routine that still runs within each cell, is devised, which allows convergence to a good working point in terms of system throughput even in presence of strong inter-cell interference.
Abstract: This paper proposes a distributed and low-complexity resource allocation scheme for cellular OFDMA networks. In particular, we consider ReMP, a reweighted message passing algorithm that perturbs the standard max-sum algorithm by suitably reweighting messages. In a single-cell scenario, such a scheme allows to achieve convergence to a fixed and provably optimum point without employing any central controller. The ReMP algorithm is then adapted to a multi-cell environment. To this aim, we devise X-ReMP, a ReMP-based algorithm that combines cross-cell signaling and the regular ReMP routine that still runs within each cell. The cross-signaling among cells aids ReMP to deal with the inter-cell multiple-access interference, so that X-ReMP allows convergence to a good working point in terms of system throughput even in presence of strong inter-cell interference.

9 citations

Cites background or methods from "3G Evolution : HSPA and LTE for Mob..."

  • ...In particular, in this paper we investigate how MP can find a natural application in radio multi-carrier systems based on the orthogonal frequency multiple access (OFDMA) scheme such as the 3GPP Long Term Evolution Advance (LTE-A) standard....

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  • ...Also, LTE-A would readily support the distribution of the sensitivity metrics as defined by (7) by utilizing the standard X2 signaling framework [1] and enhancing the standard LTEA traffic load indicator (TLI) messages exchanged between base stations....

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  • ...In LTE-A, the scheduling and resource allocation of uplink transmissions are controlled along a slotted time axis with the granularity of the so called subframe which is one ms. UEs may periodically sound the uplink channel by transmitting known sequences as sounding reference signals (SRS)....

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  • ...We consider an LTE-A-like system featuring F available OFDMA resources, i.e. physical resource blocks (PRB), belonging to the set F ....

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  • ...In these evolving architectures, there is a need for interference coordination even within a single LTE-A cell, since multiple nodes may reuse an overlapping set of OFDM subcarriers....

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Journal Article•DOI•
A two-step resource allocation procedure for LTE-based cognitive radio network

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Alia Asheralieva1, Kaushik Mahata1•
University of Newcastle1
01 Feb 2014-Computer Networks
TL;DR: The proposed theoretical framework adheres closely with the LTE specification, and the corresponding resource allocation algorithm does not involve additional network signaling over the wireless medium, and improves the overall QoS in the network.

9 citations

Cites background from "3G Evolution : HSPA and LTE for Mob..."

  • ...A comprehensive description of the LTE radio interface is available in [13]....

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