Adaptive Modulation and Coding Techniques for OFDMA Systems

被引：55

作者：

Fantacci, Romano ^{[1
]}

Marabissi, Dania ^{[1
]}

Tarchi, Daniele ^{[1
]}

Habib, Ibrahim ^{[2
]}

机构：

[1] Univ Florence, Dept Elect & Telecommun, I-50139 Florence, Italy

[2] CUNY City Coll, Dept Elect Engn, New York, NY 10031 USA

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2009年 / 8卷 / 09期

关键词：

OFDMA; adaptive modulation and coding; IEEE; 802.16; broadband wireless access; WiMAX; RESOURCE-ALLOCATION; MULTIUSER OFDM;

D O I：

10.1109/TWC.2009.090253

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The demand for high-speed services and multimedia applications anywhere and anytime has led to the rise of wireless communications. In particular, WiMAX technology is nowadays considered one of the most prominent solutions capable to provide a Broadband Wireless Access (BWA) in metropolitan areas with a simpler installation and lower cost than traditional wired alternatives. This paper deals with the proposal of efficient adaptive modulation and coding techniques to be used in WiMAX based wireless networks, that allow to improve network performance in the case of Non Line-of-Sight communications, which are typical in urban environments. Through these techniques it is possible to switch the modulation order and coding rate in order to better match the channel conditions, and, hence, obtaining better performance both in terms of error probability and data throughput.

引用

页码：4876 / 4883

页数：8

共 18 条

[1]

[Anonymous], 2005, 80216E2005 IEEE

[2]

[Anonymous], 2004, IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems, P1

[3]

CHANG MK, 2004, P IEEE VTC2004 FALL

[4] Performance Evaluation of Admission Control and Adaptive Modulation in OFDMA WiMax Systems [J].