多用户对多中继双向通信系统中继选择与功率分配策略

doi:10.3969/j.issn.1000-0801.2014.01.008

摘要/Abstract

摘要：

针对多用户对多中继双向通信系统，提出了一种中继选择与功率分配联合算法，目的是改进系统的误码率性能和降低系统的运算复杂度。所提出的新型联合算法为每对用户节点选择出最佳中继，最佳中继将接收到的信息进行网络编码后向所有节点广播，联合算法也对每个节点的发送功率进行分配。建立了新型联合算法下系统的误码率闭合表达式，并验证了解析分析的正确性。结果表明，与传统的等功率发送算法相比，本文的联合算法可以获得更好的误码率性能。

关键词: 多用户对多中继双向信道, 解码前传, 中继选择, 功率分配, 端到端误比特率

Abstract:

A joint power allocation and relay assignment algorithm for multi-pairs multi-relays two-way cooperative networks to improve system performance and decrease computation complexity was proposed. The proposed algorithm select best relays for each pair, then the selected relays use network coding to assist users exchanging signals. Meanwhile, this algorithm allocates power between all nodes participated in transmission under the total transmit power constraint.The expressions of bit error rate（BER）were derived in closed-form,and were verified by simulation. Numerical result shows that it has a performance improvement compared to the conventional equal power allocation scheme.

Key words: multi-pairs multi-relays two-way channel, decode-and-forward, relay assignment, power allocation, end-to-end bit error rate

楼思嘉,杨龙祥. 多用户对多中继双向通信系统中继选择与功率分配策略[J]. 电信科学, 2014, 30(1): 50-56.

Sijia Lou,Longxiang Yang. Joint Relay Assignment and Power Allocation in Multi-Pairs Multi-Relays Two-Way Decode-and-Forward Network[J]. Telecommunications Science, 2014, 30(1): 50-56.

图/表 5

图1

表1

图2

图3

图4

参考文献 18

1	Ahlswede R , Cai N , Li S Y R , et al. Network information flow. IEEE Transactions on Information Theory, 2000 （7）:1204～1216
2	Rankov B , Wittneben A . Spectral efficient signaling for half duplex relay channels. Proceedings of Asilomar Conference on Signals, Systems, and Computing, Pacific Grove, CA, 2005:1066～1071
3	Wu Y , Chou P A , Kung S Y . Information exchange in wireless networks with network coding and physical-layer broadcast. Proceedings of CISS, Baltimore, MD, USA, 2005
4	Zhang S , Liew S , Lam P . Physical layer network coding. Proceedings of ACM Mobicom, Log Angles, CA, USA, 2006
5	Luo J , Blum R S , Cimini L J , et al. Decode-and-forward cooperative diversity with power allocation in wireless networks. IEEE Transactions on Wireless Communications, 2007,6（3）:793～799
6	Hyadi A , Benjillali M , Alouini M . Outage performance of two-way DF relaying systems with a new relay selection metric. Proceedings of IEEE WCNC: PHY and Fundamentals, Paris, France, 2012
7	Li E Y , Yang S Z . Simple relay selection criterion for general two-way opportunistic relaying networks. Electronics Letters, 2012,48（14）:881～882
8	Upadhyay P K , Prakriya S . Performance bounds for analog network coding based two-way relaying with multiuser selection diversity. Proceedings of IEEE WCNC: MAC, Paris, France， 2012
9	Seddik K G , Sadek A K , Su W F , et al. Outage analysis and optimal power allocation for multi-node relay networks. IEEE Signal Processing Letters, 2007,14（6）:377～380
10	Pischella M , Ruyet D L , . Optimal power allocation for the two-way relay channel with data rate fairness. IEEE Communications Letters, 2011,15（9）:959～961
11	Ren Z , Chang Y Y , Zhang Y L , et al. Outage probability of joint relay selection and power allocation for two-way relay networks over Rayleigh fading channels. Proceedings of Vehicular Technology Conference （VTC Spring）, Yokohama,Japan, May 2012
12	Zhang X , Ghrayeb A , Hasna M . On relay assignment in network coded cooperative systems. IEEE Transactions on Wireless Communications, 2011, 10（3）:868～876
13	Zhang X , Ghrayeb A , Hasna M . Performance analysis of relay assignment schemes for cooperative networks with multiple source-destination pairs. IEEE Transactions on Wireless Communications, 2012, 11（1）:166～177
14	Jalil A M , Meghdadi V , Ghrayeb A . A simple optimal solution for relay assignment in cooperative systems based on the max-min criterion. Proceedings of IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011, Toronto, ON, Canada, Sep 2011,
15	Simon M K , Alouini M . Digital Communication over Fading Channels. John Wiley ＆ Sons, 2000
16	Ahmed I , Nasri A , Michalopoulos D S . Relay subset selection and fair power allocation for best and partial relay selection in generic noise and interference. IEEE Transactions on Wireless Communications, 2012, 11（5）:1828～1839
17	Peng C , Zhang Q , Zhao M , et al. SNCC: a selective network coded cooperation scheme in wireless networks. Proceedings of IEEE ICC, Glasgow, Scotland, 2007,
18	Eng T , Kong N , Milstein L B . Comparison of diversity combining techniques for Rayleigh-fading channels. IEEE Transactions on Communications, 1996, 44（9）:1117～1129

	组合1	组合2	组合3
子集1	R₁	R₂	R₃
	R₂	R₃	R₄
	R₃	R₄	R₁
	R₄	R₁	R₂
子集2	R₁	R₃	R₂
	R₂	R₄	R₃
	R₃	R₁	R₄
	R₄	R₂	R₁
子集3	R₁	R₂	R₄
	R₂	R₃	R₁
	R₃	R₄	R₂
	R₄	R₁	R₃
子集4	R₁	R₄	R₂
	R₂	R₁	R₃
	R₃	R₂	R₄
	R₄	R₃	R₁
子集5	R₁	R₃	R₄
	R₂	R₄	R₁
	R₃	R₁	R₂
	R₄	R₂	R₃
子集6	R₁	R₄	R₃
	R₂	R₁	R₄
	R₃	R₂	R₁
	R₄	R₃	R₂

[1]	李良, 杨新杰. 一种基于多跳D2D和社交感知的新颖中继选择算法[J]. 电信科学, 2022, 38(8): 101-110.
[2]	程英, 李光球, 沈静洁, 韦亮. MF中继选择系统的物理层安全性能[J]. 电信科学, 2021, 37(9): 95-104.
[3]	蔡建辉, 李光球, 段彦旭. 基于MBER的联合预编码与空时编码GFDM功率分配策略[J]. 电信科学, 2021, 37(12): 25-31.
[4]	刘芳,王亚娟,赖峥嵘,刘元安. 全双工无线通信系统的智能安全中继选择策略[J]. 电信科学, 2020, 36(10): 79-86.
[5]	任婷洁,李光球,程英. 多中继与多用户选择的中继系统安全性能分析[J]. 电信科学, 2019, 35(8): 111-119.
[6]	徐琳,赵知劲. 基于CBR与合作Q学习的分布式CRN资源分配算法[J]. 电信科学, 2019, 35(2): 35-42.
[7]	江涛,李光球,蔡建辉. CE-OFDM调制中继选择AF系统的误码性能[J]. 电信科学, 2019, 35(12): 57-66.
[8]	严杰,宋荣方. 多载波多用户下行NOMA系统的资源分配算法[J]. 电信科学, 2019, 35(11): 1-8.
[9]	李鑫滨,张玲梅,韩松,黄志鹏,刘志新. 一种水声协作通信网络顽健功率分配算法[J]. 电信科学, 2019, 35(1): 44-53.
[10]	韩帅,台祥雪,孟维晓. 空天地通信网络的物理层安全系统模型与关键技术[J]. 电信科学, 2018, 34(3): 23-31.
[11]	洪鑫龙,许晓荣,姚英彪. 无线携能通信中一种能效优先的缓存队列机制中继选择方案[J]. 电信科学, 2018, 34(3): 67-75.
[12]	冯宝,马涛,蔡世龙,李洋. TD-LTE电力无线专网中射频失配下MIMO功率分配算法[J]. 电信科学, 2018, 34(3): 177-182.
[13]	王兴鹏,许晓荣,胡安迪,冯维. Nakagami-m衰落信道下存在窃听攻击的认知中继网络安全性与可靠性折中方案[J]. 电信科学, 2018, 34(12): 24-32.
[14]	冯友宏,杨志,丁绪星,岳雪峰,李琦琦,谢小娟. 无线协作网络中的最优中继选择方案及中断概率分析[J]. 电信科学, 2018, 34(11): 87-95.
[15]	占俊,闫起发,唐小虎. 面向5G的缓存辅助多天线中继策略[J]. 电信科学, 2017, 33(6): 2-10.