Transmit Power Minimization for Two-Way Amplify-and-Forward Relaying With Asymmetric Traffic Requirements
Transmit Power Minimization for Two-Way Amplify-and-Forward Relaying With Asymmetric Traffic Requirements
复制标题
具有不对称流量要求的双向放大和转发中继的发射功率最小化
DOI:
10.1109/tvt.2016.2525763
复制
发表时间:
2016-02
影响因子:
6.8
通讯作者:
Massicotte Daniel
中科院分区:
文献类型:
--
作者:
Ji Xiaodong;Zhu Wei-Ping;Massicotte Daniel
This paper addresses the power minimization problem subject to a target quality-of-service (QoS) constraint of two-way relay systems with asymmetric traffic requirements using an amplify-and-forward (AF) relaying mode. By transforming the power minimization problem into a two-stage problem and by using the traffic information together with the short-term channel knowledge, an optimum power control (OPC) technique is first proposed, leading to closed-form solutions for individual transmit power at the relay and the sources. Then, by making use of the available diversity of the multiple-relay channel, the joint design of OPC and relay selection (RS) is investigated, eventually resulting in a joint power control and RS (JPCRS) algorithm with two decentralized RS policies for transmit power minimization. Simulation results are provided to validate the derived expressions and confirm the efficiency of the proposed strategies. It is shown that our proposed strategies can significantly reduce the system transmit power, while ensuring the target QoS of the system, and that the proposed RS algorithm is superior to the conventional max-min and max-sum methods in any traffic and/or channel conditions in terms of energy saving.
登录
查看更多内容
影响因子:
6.8
作者:
Ji Xiaodong;Zhu Wei-Ping;Massicotte Daniel
通讯作者:
Massicotte Daniel
影响因子:
6.8
作者:
Zhang Chensi;Ge Jianhua;Li Jing;Gong Fengkui;Ji Yancheng;Farah Mohamed A.
通讯作者:
Farah Mohamed A.
DOI:
10.1017/cbo9780511841224
发表时间:
2005-08
期刊:
--
影响因子:
--
作者:
A. Goldsmith
通讯作者:
A. Goldsmith
影响因子:
16.4
作者:
Rankov, Boris;Wittneben, Armin
通讯作者:
Wittneben, Armin
DOI:
10.1109/glocom.2005.1577037
发表时间:
2005
期刊:
GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.
影响因子:
--
作者:
A. Jamalipour;N. Ansari;M. Howlader;Chengshan Xiao
通讯作者:
A. Jamalipour;N. Ansari;M. Howlader;Chengshan Xiao