Performance Analysis for Lossy-Forward Relaying Over Nakagami-m Fading Channels

被引：10

作者：

Qian, Shen ^{[1
,2
]}

Zhou, Xiaobo ^{[3
]}

He, Xin ^{[4
]}

He, Jiguang ^{[2
]}

Juntti, Markku ^{[2
]}

Matsumoto, Tad ^{[1
,2
]}

机构：

[1] Japan Adv Inst Sci & Technol, Sch Informat Sci, Nomi, Ishikawa 9231292, Japan

[2] Univ Oulu, Ctr Wireless Commun, FI-90014 Oulu, Finland

[3] Tianjin Univ, Sch Comp Sci & Technol, Tianjin 300072, Peoples R China

[4] Anhui Normal Univ, Sch Math & Comp Sci, Wuhu 241002, Anhui, Peoples R China

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2017年 / 66卷 / 11期

基金：

中国国家自然科学基金; 芬兰科学院;

关键词：

Coding gain; epsilon-outage achievable rate; equivalent diversity order; lossy forward (LF); Nakagami-m fading; optimal relay location; outage probability; relay channels; DECODE-AND-FORWARD; DIVERSITY-MULTIPLEXING TRADEOFF; OUTAGE PROBABILITY; SYSTEMS; CODES;

D O I：

10.1109/TVT.2017.2743498

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate the performance of three-node lossy-forward (LF) relaying over independent blockNakagami-mfading channels. Based on the theorem of source coding with side information, the exact outage probability expression for arbitrary values of the shape factormis derived under the assumptions of both the Gaussian codebook capacity and the constellation constrained capacity. The difference in outage probability between the two codebook models of capacity is found to be very minor. Furthermore, an accurate high signal-to-noise ratio approximation for the outage probability is obtained. It clearly identifies the equivalent diversity order and coding gain of the LF relaying. It is shown that the LF relaying is superior to conventional decode-and-forward relaying in terms of the outage probability and the epsilon-outage achievable rate. Moreover, with the LF relaying, the optimal location for the relay (R), which minimizes the outage probability, is found to be the point having same distance to the source (S) and the destination (D) when the S-R and R-D links experience the same level of fading. The accuracy of the analytical results is verified by a series of Monte Carlo simulations.

引用

页码：10035 / 10043

页数：9