Power Provisioning and Relay Positioning for Two-Way Relay Channel With Analog Network Coding

被引：60

作者：

Li, Yong ^{[1
]}

Zhang, Xiang ^{[1
]}

Peng, Mugen ^{[1
]}

Wang, Wenbo ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Minist Educ, Univ Wireless Commun, Wireless Signal Proc & Network Lab,Key Lab, Beijing 100876, Peoples R China

来源：

IEEE SIGNAL PROCESSING LETTERS | 2011年 / 18卷 / 09期

关键词：

Analog network coding; energy efficiency; outage probability; two-way relay; AMPLIFY-AND-FORWARD; ALLOCATION; PERFORMANCE;

D O I：

10.1109/LSP.2011.2161670

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 consider two end users which have asymmetric traffic requirements in terms of both data rate and outage probability. They exchange information in Rayleigh flat-fading channels, and a half-duplex relay node is employed to assist the bidirectional communication between them, using the analog network coding (ANC) protocol. The provision of power levels for each node is investigated so as to minimize the total energy consumed to satisfy the asymmetric traffic requirements. By comparing energy consumptions between ANC strategy and direct transmission strategy, the relay operating region is also identified in which relay-assisted transmission can yield higher energy efficiency than direct transmission. It also indicates that the relay node is best positioned at the middle point of the two end nodes for any asymmetric traffic requirements from the perspective of energy consumption minimization.

引用

页码：517 / 520

页数：4

共 16 条

[1] On the Study of Network Coding with Diversity [J].

Ding, Zhiguo ;

Leung, Kin K. ;

Goeckel, Dennis L. ;

Towsley, Don .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2009, 8 (03) :1247-1259

[2] Optimal power allocation for relayed transmissions over Rayleigh-fading channels [J].

Hasna, MO ;

Alouini, MS .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2004, 3 (06) :1999-2004

[3] End-to-end performance of transmission systems with relays over Rayleigh-Fading channels [J].

Hasna, MO ;

Alouini, MS .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2003, 2 (06) :1126-1131

[4] Optimal Distributed Beamforming for Two-Way Relay Networks [J].

Havary-Nassab, Veria ;

Shahbazpanahi, Shahram ;

Grami, Ali .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2010, 58 (03) :1238-1250

[5] Two-way relaying over OFDM: Optimized tone permutation and power allocation [J].

Ho, Chin Keong ;

Zhang, Rui ;

Liang, Ying-Chang .

2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13, 2008, :3908-3912

[6] Capacity bounds and power allocation for wireless relay channels [J].

Host-Madsen, A ;

Zhang, JS .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (06) :2020-2040

[7]

Katti S., 2007, P ACM SIGCOMM, P397

[8] Subcarrier Pairing for Amplify-and-Forward and Decode-and-Forward OFDM Relay Links [J].

Li, Yong ;

Wang, Wenbo ;

Kong, Jia ;

Peng, Mugen .

IEEE COMMUNICATIONS LETTERS, 2009, 13 (04) :209-211

[9] Wireless network coding by amplify-and-forward for bi-directional traffic flows [J].

Popovski, Petar ;

Yomo, Hiroyuki .

IEEE COMMUNICATIONS LETTERS, 2007, 11 (01) :16-18

[10] Spectral efficient protocols for half-duplex fading relay channels [J].

Rankov, Boris ;

Wittneben, Armin .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2007, 25 (02) :379-389

← 1 2 →