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
Citations
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23 May 2010
TL;DR: This paper considers multicast systems that use layered source coding with successive refinement in a Rayleigh fading environment, and uses the Lagrangian dual problem in order to efficiently solve the primal non-convex problem for any number of layers.
Abstract: In this paper we consider multicast systems that use layered source coding with successive refinement in a Rayleigh fading environment. For this kind of systems, we optimally allocate the transmission power, and hence the decoding threshold of each layer, in order to maximize the expected satisfaction defined by a utility function of the decoded rates of the users. In particular, we use the Lagrangian dual problem in order to efficiently solve the primal non-convex problem for any number of layers. Furthermore, we show that for some channel statistics, it is not optimal to transmit all the layers, rather we should allocate zero power to some of the upper layers in order to maximize the expected user satisfaction.
8 citations
Cites background or methods from "3G Evolution : HSPA and LTE for Mob..."
...The efficiency of the proposed solution renders it applicable to many of the concurrent systems such as MobileTV services over LTE [12]....
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...The rates of the source layers (obtained from Table IV in [12]) are respectively 75....
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TL;DR: Two simplified versions of leakage-based precoding algorithms suitable for multiple streams per UTs are proposed, and its performance with existing solutions is compared.
8 citations
Cites background from "3G Evolution : HSPA and LTE for Mob..."
...The new generations of mobile networks (4G/5G) [1] use extensively multi-input multi-output (MIMO) systems [2], with several antennas at the base station (BS) and at the user terminals (UT) to improve the data rate, reduce radiated power and improve signal quality....
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Patent•
11 Feb 2009TL;DR: In this article, the authors proposed a method for preventing an external party (114) to map an identity of a network cell (122) of a telecommunication network (112 or 120) with a corresponding geographical location of the network cell.
Abstract: Node, computer software and method for preventing an external party (114) to map an identity of a network cell (122) of a telecommunication network (112 or 120) with a corresponding geographical location of the network cell (122) The method includes receiving at a base station (200) of the telecommunication network (112 or 120) system information from a radio network controller (203) of the telecommunication network (112 or 120); extracting, at the base station (200), the identity of the network cell (122) from the received system information; changing, at the base station (200), the identity or one of multiple parts of the identity of the network cell (122); and sending the changed identity or the one of multiple parts of the identity to a user terminal (80)
8 citations
07 Jul 2016
TL;DR: Simulated and analytical results show that a significant capacity gain is achieved by the considered MISO scheme as compared to the uniform power allocation over the Nakagami-m fading channels.
Abstract: In this paper, we study the problem of one bit imperfect feedback based diagonal precoding for Alamouti space-time block code in a 2 × 1 multiple-input single-output (MISO) communication system. The communication links are assumed to be Nakagami-m distributed. An accurate bit error rate (BER) expression of the considered MISO system is derived with erroneous feedback by using the order statistics. The average BER of the precoding scheme is minimized to find the optimized transmit weights. Further, we also derive the Shannon capacity of the scheme by using the moment generating function approach. Simulated and analytical results show that a significant capacity gain is achieved by the considered scheme as compared to the uniform power allocation over the Nakagami-m fading channels.
8 citations
Cites background from "3G Evolution : HSPA and LTE for Mob..."
...[5] E. Dahlman, S. Parkvall, J. Skold, and P. Beming, 3G Evolution: HSPA and LTE for Mobile Broadband, 2nd ed....
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...These properties make the Alamouti STBC useful for recent wireless communication technology like the long term evaluation (LTE) [5]....
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19 Apr 2011
TL;DR: As the numerical results presented in this paper indicate, the applicaton of APSK modulation scheme is beneficial specially in highly nonlinearly distorted scenarios.
Abstract: This paper investigates the application of Amplitude Phase Shift Keying (APSK) modulation in the nonlin-early distorted Long Term Evolution (LTE) uplink. APSK is recognized as spectrally efficient baseband modulation scheme, which is already adopted in several standards for digital video broadcasting, including e.g. Digital Video Broadcasting Satellite-Second Generation (DVB-S2). However, its application in the LTE standard has not been studied yet. Therefore, the motivation of this paper is to elaborate on the APSK performance in the LTE uplink and to provide the comparison with already standardized QAM modulation scheme. As the numerical results presented in this paper indicate, the applicaton of APSK modulation scheme is beneficial specially in highly nonlinearly distorted scenarios.
8 citations
Cites background from "3G Evolution : HSPA and LTE for Mob..."
...LTE is projected to offer high transmission rate (50 to 100 Mbps of downstream service), high spectrum efficiency transmission and low latencies [1]....
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