%0 Journal Article
%T A modified bit and power allocation algorithm for MIMO relay system<br>一种改进的MIMO中继系统中比特与功率分配算法
%A LV Juan
%A ZHANG Dan
%A WANG Mengjun
%A LIU Jianfei
%A <br>吕娟
%A 张丹
%A 王蒙军
%A 刘剑飞
%J 重庆邮电大学学报(自然科学版)
%D 2012
%I 
%X Bit and power allocation is an important issue of adaptive resource allocation in MIMO-OFDM system. In this paper, an improved algorithm, bits and power allocation algorithm based on water-filling theorem, is proposed and used to the single-user MIMO amplify and forward relay system. The algorithm which adopts the method of bisection to search water-filling line can reduce the number of literations with low complexity compared with the traditional water-filling algorithm. Simulation results show that system capacity and bit error rate performance can be improved effectively.
%K MIMO relay system
%K water-filling theorem
%K bit and power allocation
%K system frequency efficiency<br>MIMO中继系统
%K 注水定理
%K 比特功率分配
%K 系统谱效率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=5C2694A2E5629ECD6B59D7B28C6937AD&aid=B42D1E4823B5E0C29506D2957782D7FC&yid=99E9153A83D4CB11&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=240CB58995465C01&eid=4720E9D07E8A2290&journal_id=1673-825X&journal_name=重庆邮电大学学报(自然科学版)&referenced_num=0&reference_num=0