Acta Metallurgica Sinica(English letters) ›› 2010, Vol. 17 ›› Issue (4): 13-17.doi: 10.1016/S1005-8885(09)60481-7

• Wireless • 上一篇    下一篇

Research on the low complexity adaptive power allocation algorithm in cooperative systems

王亮1,2,武卓1,陈惠民1,解维浩1   

  1. 1. 上海大学,特种光纤与光接入网省部共建重点实验室
    2. 中国移动通信集团上海有限公司
  • 收稿日期:2009-05-11 修回日期:2010-05-17 出版日期:2010-08-30 发布日期:2010-08-31
  • 通讯作者: 陈惠民 E-mail:hmchen@staff.shu.edu.cn
  • 基金资助:

    This work was supported by the Shanghai Leading Academic Discipline Project and STCSM (S30108 and 08DZ2231100), the Shanghai Pujiang Program (08PJ14057), and the Fund of Innovation for Graduate Student of Shanghai University (Shucx080151).

Research on the Low Complexity Adaptive Power Allocation Algorithm in Cooperative Communication Systems

  1. 1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China 2. China Mobile Communication Group Shanghai Co., Ltd, Shanghai 200060, China
  • Received:2009-05-11 Revised:2010-05-17 Online:2010-08-30 Published:2010-08-31
  • Supported by:

    This work was supported by the Shanghai Leading Academic Discipline Project and STCSM (S30108 and 08DZ2231100), the Shanghai Pujiang Program (08PJ14057), and the Fund of Innovation for Graduate Student of Shanghai University (Shucx080151).

摘要:

Cooperative diversity is a new technology to improve bit error rate (BER) performance in wireless communications. A new power allocation algorithm to improve BER performance in cellular uplink has been proposed in this paper. Some existing power allocation schemes were proposed for the purpose of maximizing the channel capacity or minimizing the outage probability. Different from these schemes, the proposed algorithm aims at minimizing the BER of the systems under the constraint of total transmission power. Besides this characteristic, the proposed algorithm can realize a low complexity real-time power allocation according to the fluctuation of channels. Simulation results show that the proposed algorithm can decrease the BER performance of the systems effectively.

关键词:

cooperative communication, power allocation, BER

Abstract:

Cooperative diversity is a new technology to improve bit error rate (BER) performance in wireless communications. A new power allocation algorithm to improve BER performance in cellular uplink has been proposed in this paper. Some existing power allocation schemes were proposed for the purpose of maximizing the channel capacity or minimizing the outage probability. Different from these schemes, the proposed algorithm aims at minimizing the BER of the systems under the constraint of total transmission power. Besides this characteristic, the proposed algorithm can realize a low complexity real-time power allocation according to the fluctuation of channels. Simulation results show that the proposed algorithm can decrease the BER performance of the systems effectively.

Key words:

cooperative communication, power allocation, BER