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4G: LTE/LTE-Advanced for Mobile Broadband

TL;DR: In this article, the authors focus on LTE with full updates including LTE-Advanced to provide a complete picture of the LTE system, including the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance.
Abstract: Based on the bestseller "3G Evolution - HSPA and LTE for mobile broadband" and reflecting the ongoing success of LTE throughout the world, this book focuses on LTE with full updates including LTE-Advanced to provide a complete picture of the LTE system. Overview and detailed explanations are given for the latest LTE standards for radio interface architecture, the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance. 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 the LTE/LTE-Advanced implementation are given. An overview of other related systems such as GSM/EDGE, HSPA, CDMA2000, and WIMAX is also provided. This book is a 'must-have' resource for engineers and other professionals in the telecommunications industry, working with cellular or wireless broadband technologies, giving an understanding of how to utilize the new technology in order to stay ahead of the competition. The authors of the book all work at Ericsson Research and have been deeply involved in 3G and 4G 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 LTE within 3GPP. Includes full details of the latest additions to the LTE Radio Access standards and technologies up to and including 3GPP Release 10Clear explanations of the role of the underlying technologies for LTE, including OFDM and MIMO Full coverage of LTE-Advanced, including LTE carrier aggregation, extended multi-antenna transmission, relaying functionality and heterogeneous deploymentsLTE radio interface architecture, physical layer, access procedures, MBMS, RF characteristics and system performance covered in detail
Citations
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Journal ArticleDOI
TL;DR: An optimization framework for channel-adaptive pulse and lattice scaling in a general Time-Frequency (T-F) multiplexing scheme is provided and it is shown that using optimum pulse and ultrasonic scaling, improves the Signal to Interference Ratio (SIR) significantly, compared to non-optimal pulses and lattices.
Abstract: In this paper, we provide an optimization framework for channel-adaptive pulse and lattice scaling in a general Time-Frequency (T-F) multiplexing scheme. Closed form relations for the optimum pulse and lattice scaling are derived analytically considering the requirements of two important 5G applications, i.e. tactile internet and cognitive radio. For tactile internet, we solve the problem with a constraint on the time dispersion of the pulse shaping filter at the receiver in order to decrease the length of Cyclic Prefix (CP) and consequently improve the spectral efficiency. Then, aiming for limiting the Out-Of-Band (OOB) leakage in cognitive radio applications, we find a solution to the optimization problem with a constraint on frequency dispersion of pulse shaping filter at the transmitter. Finally, we consider both of these constraints and solve the problem analytically. The results show that using optimum pulse and lattice scaling, improves the Signal to Interference Ratio (SIR) significantly, compared to non-optimal pulses and lattices. Furthermore, it is shown that applying the constraint to either Receive (Rx-) filter time dispersion or Transmitter (Tx-) filter frequency dispersion does not degrade the SIR significantly while limiting both of them leads to a mismatch between pulse shaping filters and degrades the SIR considerably.

4 citations

Journal ArticleDOI
TL;DR: It is suggested that, for fixed latency and reliability constraints, noise in the feedback link may increase the minimum average service time for the VLSF scheme considered in this paper, to the extent that fixed-length codes without feedback may be preferable in some scenarios.
Abstract: We present an upper bound on the error probability achievable using variable-length stop feedback (VLSF) codes, for a fixed size of the information payload and a given constraint on the maximum latency and the average service time. Differently from the bound proposed in Polyanskiy et al. (2011), which pertains to the scenario in which the stop signal is sent over a noiseless feedback channel, our bound applies to the practically relevant setup in which the feedback link is noisy. Numerical evaluation of our bound suggests that, for fixed latency and reliability constraints, noise in the feedback link may increase the minimum average service time for the VLSF scheme considered in this paper, to the extent that fixed-length codes without feedback may be preferable in some scenarios.

4 citations

Journal ArticleDOI

4 citations


Cites background from "4G: LTE/LTE-Advanced for Mobile Bro..."

  • ...and electromagnetic interference are becoming more and more important.(1-4) In particular, they may be very desired for commercially-exploited bands, such as the Global...

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Proceedings ArticleDOI
25 Nov 2013
TL;DR: In this paper, a simple yet effective inter-cell interference coordination scheme for an inband relaying system based on joint design of frequency reuse strategies during backhaul and access subframes is proposed.
Abstract: In 3GPP LTE-Advanced, relaying is considered as an important means for extending cell coverage and improving capacity. However relays create new cell edge and generate more interference. With the introduction of relay, interference management or coordination is needed. In this paper, we propose a simple yet effective inter-cell interference coordination scheme for an inband relaying system based on joint design of frequency reuse strategies during backhaul and access subframes. Our evaluations show that the proposed framework can improve both the cell average and cell-edge user performance greatly.

4 citations


Cites methods from "4G: LTE/LTE-Advanced for Mobile Bro..."

  • ...Relaying is considered for 3GPP LTE(Long Term Evolution)-Advanced as a tool to improve for instance the coverage of high data rates, group mobility, temporary network deployment, the cell-edge throughput and/or to provide coverage in new areas [1]....

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Proceedings ArticleDOI
01 Sep 2016
TL;DR: It is proved that intractable integrality of the optimisation problem can be removed and relaxed to the Linear Programming (LP), which obtains an optimal solution for the original ILP.
Abstract: Resource Allocation (RA) is one of the crucial elements in Long Term Evolution (LTE) networks, which has a tremendous impact on the network performance. However, complexity of the RA problem increases when both Carrier Aggregation (CA) and Multiple-Input Multiple-Output (MIMO) are enabled in the network. CA is a key functionality for LTE- Advanced (LTE-A) that enables Mobile Networ Operators (MNOs) to create large virtual carrier bandwidths for data hungry applications by aggregating available Component Carriers (CCs). In this paper, Resource Block (RB), Secondary CC (SCC), MIMO Transmission Mode (TM), and Modulation and Coding Scheme (MCS) selection is formulated jointly as an Integer Linear Programming (ILP). We prove that intractable integrality of the optimisation problem can be removed and relaxed to the Linear Programming (LP). Solving the LP obtains an optimal solution for the original ILP.

4 citations


Cites background or methods or result from "4G: LTE/LTE-Advanced for Mobile Bro..."

  • ...OSLM can be applied in high-mobility scenarios where accurate feedback is difficult to achieve due to the latency in the PMI reporting [1]....

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  • ...Similar to LTE UE, the configuration of PCC is UE-specific [1], [7]....

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  • ...Closed Loop Spatial Multiplexing (CLSM): It is similar to OSLM with this difference that the network selects PMI based on UE’s reported CSI feedback [1]....

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  • ...In the frequency domain, 12 OFDM subcarriers makes one sub-channel equals 180 KHz [1]....

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  • ...Once the communication between eNB and UE established, additional SCCs can be configured by scheduler located at eNB; in other words SCC assignment is cell-specific and signaled as part of the system information [1], [7]....

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