Performance analysis of asynchronous FFH-SSMA communication systems with frequency errors in Rayleigh fading channels

被引：0
|
作者：
Joo, J [1 ]
Kim, K [1 ]
机构：
[1] K JIST, Dept Informat & Commun, Puk Ku, Kwangju 500712, South Korea
来源：
2001 MILCOM, VOLS 1 AND 2, PROCEEDINGS: COMMUNICATIONS FOR NETWORK-CENTRIC OPERATIONS: CREATING THE INFORMATION FORCE | 2001年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we derive expressions for the bit error rate (BER) for an asynchronous FFH-SSMA system using Markov hopping pattern and consider the occurrence Of all possible hits by multiple interfering users for outdoor radio communications. The modulation scheme considered is the noncoherent M-ary frequency-shift-keying (MFSK) with. a threshold level, which is selected properly depending on, channel and system conditions. The outdoor environment is described as the Rayleigh fading channel with an, rms delay spread of 10 to 25 mus. The normalized frequency error of 0.4 requires about 6 dB additional SNR compared with the perfect frequency synchronized case at BER = 10(-3).
引用
收藏
页码：1335 / 1339
页数：5
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