Book•
3G Evolution : HSPA and LTE for Mobile Broadband
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
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01 Jan 2012
3 citations
Cites methods from "3G Evolution : HSPA and LTE for Mob..."
...This is called Hybrid ARQ with soft combining [50]....
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19 Mar 2015
TL;DR: Gn interface which was being used in UMTS for the connectivity of SGSN and GGSN will be used in the initial stage of LTE but this interface will finally get replaced by S3 and S4 interfaces after the software up-gradation of S GSN.
Abstract: LTE is an all IP Network, has a flat architecture, and thus reduces complexity. Each of the radio and core elements present in the network are interconnected by standardized interfaces so that there is interoperability between different vendor products. So the network operators can choose network elements form same or different vendors. Gn interface which was being used in UMTS for the connectivity of SGSN and GGSN will be used in the initial stage of LTE between SGSN and P-GW but this interface will finally get replaced by S3 and S4 interfaces after the software up-gradation of SGSN. Gn, S3 and S4 interfaces use the different versions of the same application protocol i.e. GPRS Tunnelling Protocol (GTP). Some of these interfaces and protocols that are being used in LTE are mentioned in this paper.
3 citations
20 Jun 2011
TL;DR: Key features are provided along with the description and explanation of two effective contributions to the ns-3 developers community: the evaluation of handover algorithms in LTE femtocell networks, based on a centralized mechanism handled by a Home eNodeB Gateway (HeNB-GW), and the extraction of link effective measurements to enhance the system level simulator error model,based on Mutual Information Effective SINR Metrics (MIESM).
Abstract: This work tackles the issue of multimedia traffic optimization in LTE networks. The whole approach comprises two parts: first, the analysis and design of novel communication techniques; second, the implementation and extension of the network simulation tool (ns-3) used to test and validate the proposed approaches. This key features are provided along with the description and explanation of two effective contributions to the ns-3 developers community: the evaluation of handover algorithms in LTE femtocell networks, based on a centralized mechanism handled by a Home eNodeB Gateway (HeNB-GW), and the extraction of link effective measurements to enhance the system level simulator error model, based on Mutual Information Effective SINR Metrics (MIESM).
3 citations
Cites background from "3G Evolution : HSPA and LTE for Mob..."
...I. INTRODUCTION The Third Generation Partnership Project (3GPP) [1] Evolved Packet System (EPS) represents the evolution of today’s deployed 3G networks, including the Evolved UMTS Terrestrial Radio Access Networks (E-UTRAN), also referred to as Long Term Evolution (LTE), and a new core network based on the Internet Protocol (IP): the Evolved Packet Core (EPC)....
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...Then, support for broadcast and multicast video services, such as Internet TV and Personal Broadcasting, will be evaluated by means of multicast mechanisms at different layers of the protocol stack....
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...This novel technology represents an emerging and promising solution for providing broadband ubiquitous wireless access thanks to its radio capabilities and enhanced communication protocol techniques, then it seems to be the best answer for the future traffic; in fact, based on many market predictions, the next frontier seems to move towards the diffusion of multimedia services that will soon dominate the Internet [2]....
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27 Jul 2016
TL;DR: By smartly combining the rotated signals at the transmitter, the proposed MSSK modulation scheme is able to solve the multi-signal confliction problem in SSK system and increase the spectrum efficiency significantly.
Abstract: Multiple-input multiple-output (MIMO) techniques take advantage of transmitting multiple data streams at the transmitter simultaneously to increase the spectrum efficiency. However, it is difficult for the newly emerging spatial modulation (SM) MIMO techniques to transmit multiple data streams directly, because of the multi-signal confliction problem. In this paper, we present a new multi-stream space shift keying (MSSK) modulation scheme for MIMO system, which modulates the multiple streams of signals to the transmitter by space shift keying (SSK) method without signal confliction. We adopt rotated signals to identify different streams and enlarge the Euclidean distance between streams without conveying any information. By smartly combining the rotated signals at the transmitter, the proposed MSSK modulation scheme is able to solve the multi-signal confliction problem in SSK system and increase the spectrum efficiency significantly. We also derive the tight upper bounds of bit error probability for MSSK and compare the proposed scheme with the existing SM MIMO schemes in this paper. Numerical results verify its effectiveness.
3 citations
Cites background from "3G Evolution : HSPA and LTE for Mob..."
...INTRODUCTION CONVENTIONAL multi-input multi-output (MIMO) techniques [1] [2] has been considered as an attractive solution for increasing spectrum efficiency through transmitting multiple data streams simultaneously....
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28 Jul 2016
TL;DR: Experimental validations 1 of bandwidth compressed multicarrier waveforms for future 5th generation (5G) applications are comprehensively summarized, aiming to provide high capacity and high mobility, simultaneously while saving spectrum.
Abstract: We comprehensively summarize experimental validations 1 of bandwidth compressed multicarrier waveforms for future 5th generation (5G) applications. The proposed waveforms are derived from an existing non-orthogonal multicarrier concept termed spectrally efficient frequency division multiplexing (SEFDM) where sub-carriers are non-orthogonally packed at frequencies below the symbol rate. This improves the spectral efficiency at the cost of self-created inter carrier interference (ICI). In this work, experiments are reported and testing is carried out in three scenarios including long term evolution (LTE)-like wireless link; millimeter wave radio-over-fiber (RoF) link and optical fiber link. In the first scenario, for a given 25 MHz bandwidth, the SEFDM testbed can provide 70 Mbit/s gross data rate while only 50 Mbit/s can be achieved for an OFDM system occupying the same bandwidth. For the millimeter wave experiment, occupying a 1.125 GHz bandwidth, the gross bit rate for OFDM is 2.25 Gbit/s and with 40% bandwidth compression, 3.75 Gbit/s can be achieved for SEFDM. Two experimental optical fiber links are described in this work; a 10 Gbit/s direct detection optical SEFDM system and a 24 Gbit/s coherent detection SEFDM system. The LTE-like signals and millimeter wave technologies are well suited to provide last mile communications to end users as both can support mobility in wireless environments. The lightwave signals delivered by optical fibers would offer higher data rates and support long-haul communications. The reported techniques, used individually or combined, would be of interest to future wireless system designers, where bandwidth saving is of importance, such as in 5G networks, aiming to provide high capacity and high mobility, simultaneously while saving spectrum.
3 citations
Cites methods from "3G Evolution : HSPA and LTE for Mob..."
...Specially we describe: ∙ An enhanced LTE-like SEFDM signal is experimentally evaluated in a carrier aggregation (CA) scenario [1] in a real world wireless testbed together with a realistic LTE multipath fading channel....
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