Subcarrier allocation wit low-complexity in multiuser OFDM systems

被引：0
|
作者：
Choe, KD [1 ]
Lim, YJ [1 ]
Park, SK [1 ]
机构：
[1] Anyang Tech Coll, Sch Elect Commun & Informat, Anyang, South Korea
来源：
MILCOM 2004 - 2004 IEEE MILITARY COMMUNICATIONS CONFERENCE, VOLS 1- 3 | 2004年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In a wireless and mobile channel, a low complexity can be very important factor for an adaptive loading algorithm in orthogonal frequency division multiplexing (OFDM) systems. In this paper, we focus on how to allocate the subcarriers used in a multiuser environment to each user efficiently. First, this paper shows the shortcoming of the traditional subcarrier allocation algorithm for a multiuser OFDM system. Then, a new adaptive allocation algorithm is proposed to reduce the complexity of the allocation algorithm scheme. Consequently, in this paper it is shown that the proposed allocation algorithm has the lower computational complexity than the conventional one, while the both algorithms have almost same bit error rate (BER) performances in a Rayleigh fading environment.
引用
收藏
页码：822 / 826
页数：5
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