Performance Analysis of Multiuser Relay Networks with Feedback Delay

Jie YANG; Xiaofei ZHANG; Kai YANG

doi:10.1587/transfun.E97.A.1770

Performance Analysis of Multiuser Relay Networks with Feedback Delay

Jie YANG, Xiaofei ZHANG, Kai YANG

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In this paper, we analyze the performance of a dual-hop multiuser amplify-and-forward (AF) relay network with the effect of the feedback delay, where the source and each of the K destinations are equipped with N_t and N_r antennas respectively, and the relay is equipped with a single antenna. In the relay network, multi-antenna and multiuser diversities are guaranteed via beamforming and opportunistic scheduling, respectively. To examine the impact of delayed feedback, the new exact analytical expressions for the outage probability (OP) and symbol error rate (SER) are derived in closed-form over Rayleigh fading channel, which are useful for a large number of modulation schemes. In addition, we present the asymptotic expressions for OP and SER in the high signal-to-noise ratio (SNR) regime, from which we gain an insight into the system performance with deriving the diversity order and array gain. Moreover, based on the asymptotic expressions, we determine power allocation among the network nodes such that the OP is minimized. The analytical expressions are validated by Monte-Carlo simulations.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.8 pp.1770-1779

Publication Date: 2014/08/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E97.A.1770

Type of Manuscript: PAPER

Category: Communication Theory and Signals

Authors

Jie YANG
  Beijing Institute of Technology
Xiaofei ZHANG
  Beijing Institute of Technology
Kai YANG
  University Paris

Keyword

AF relay network, opportunistic scheduling, beamforming, Rayleigh fading, feedback delay

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Jie YANG, Xiaofei ZHANG, Kai YANG, "Performance Analysis of Multiuser Relay Networks with Feedback Delay" in IEICE TRANSACTIONS on Fundamentals, vol. E97-A, no. 8, pp. 1770-1779, August 2014, doi: 10.1587/transfun.E97.A.1770.
Abstract: In this paper, we analyze the performance of a dual-hop multiuser amplify-and-forward (AF) relay network with the effect of the feedback delay, where the source and each of the K destinations are equipped with N_t and N_r antennas respectively, and the relay is equipped with a single antenna. In the relay network, multi-antenna and multiuser diversities are guaranteed via beamforming and opportunistic scheduling, respectively. To examine the impact of delayed feedback, the new exact analytical expressions for the outage probability (OP) and symbol error rate (SER) are derived in closed-form over Rayleigh fading channel, which are useful for a large number of modulation schemes. In addition, we present the asymptotic expressions for OP and SER in the high signal-to-noise ratio (SNR) regime, from which we gain an insight into the system performance with deriving the diversity order and array gain. Moreover, based on the asymptotic expressions, we determine power allocation among the network nodes such that the OP is minimized. The analytical expressions are validated by Monte-Carlo simulations.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E97.A.1770/_p

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@ARTICLE{e97-a_8_1770,
author={Jie YANG, Xiaofei ZHANG, Kai YANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Performance Analysis of Multiuser Relay Networks with Feedback Delay},
year={2014},
volume={E97-A},
number={8},
pages={1770-1779},
abstract={In this paper, we analyze the performance of a dual-hop multiuser amplify-and-forward (AF) relay network with the effect of the feedback delay, where the source and each of the K destinations are equipped with N_t and N_r antennas respectively, and the relay is equipped with a single antenna. In the relay network, multi-antenna and multiuser diversities are guaranteed via beamforming and opportunistic scheduling, respectively. To examine the impact of delayed feedback, the new exact analytical expressions for the outage probability (OP) and symbol error rate (SER) are derived in closed-form over Rayleigh fading channel, which are useful for a large number of modulation schemes. In addition, we present the asymptotic expressions for OP and SER in the high signal-to-noise ratio (SNR) regime, from which we gain an insight into the system performance with deriving the diversity order and array gain. Moreover, based on the asymptotic expressions, we determine power allocation among the network nodes such that the OP is minimized. The analytical expressions are validated by Monte-Carlo simulations.},
keywords={},
doi={10.1587/transfun.E97.A.1770},
ISSN={1745-1337},
month={August},}

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TY - JOUR
TI - Performance Analysis of Multiuser Relay Networks with Feedback Delay
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1770
EP - 1779
AU - Jie YANG
AU - Xiaofei ZHANG
AU - Kai YANG
PY - 2014
DO - 10.1587/transfun.E97.A.1770
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E97-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2014
AB - In this paper, we analyze the performance of a dual-hop multiuser amplify-and-forward (AF) relay network with the effect of the feedback delay, where the source and each of the K destinations are equipped with N_t and N_r antennas respectively, and the relay is equipped with a single antenna. In the relay network, multi-antenna and multiuser diversities are guaranteed via beamforming and opportunistic scheduling, respectively. To examine the impact of delayed feedback, the new exact analytical expressions for the outage probability (OP) and symbol error rate (SER) are derived in closed-form over Rayleigh fading channel, which are useful for a large number of modulation schemes. In addition, we present the asymptotic expressions for OP and SER in the high signal-to-noise ratio (SNR) regime, from which we gain an insight into the system performance with deriving the diversity order and array gain. Moreover, based on the asymptotic expressions, we determine power allocation among the network nodes such that the OP is minimized. The analytical expressions are validated by Monte-Carlo simulations.
ER -