Adaptive Transmission in a MIMO-OFDM System in Nakagami-m Fading Channels

被引：0

作者：

Bhaskar, Vidhyacharan ^{[1
,2
]}

Reddy, Kamireddy Narendra ^{[3
]}

机构：

[1] San Francisco State Univ, Dept Elect & Comp Engn, San Francisco, CA 94132 USA

[2] Northwestern Polytech Univ, Dept Elect Engn, Fremont, CA 94539 USA

[3] SRM Univ, Dept Elect & Commun Engn, Kattankulathur 603203, Tamil Nadu, India

来源：

INTERNATIONAL JOURNAL OF WIRELESS INFORMATION NETWORKS | 2015年 / 22卷 / 03期

关键词：

Multiple input multiple output orthogonal frequency division multiplexing; Nakagami-m fading;

D O I：

10.1007/s10776-015-0280-1

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The goal of fourth generation (4G) mobile communications system is to seamlessly integrate a wide variety of communication services such as high speed data, video and multimedia traffic as well as voice signals. One of the promising approaches in 4G is the Adaptive Orthogonal Frequency Division Multiplexing (AOFDM) technique. In Multiple Input Multiple Output (MIMO)OFDM, adaptive transmission scheme is employed according to channel fading conditions in OFDM to improve the performance. In this paper, adaptive modulation is only considered. To further enhance the system performance, convolutional coding can be employed to the OFDM system. The obtained results show that significant improvement in bit error rate and average spectrum efficiency can be achieved demonstrating the superiority of the adaptive modulation schemes compared to fixed transmission schemes.

引用

页码：285 / 293

页数：9

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