ANALYSIS OF NOISE IMMUNITY OF OFDMA COMMUNICATION SYSTEMS OPERATED IN THE PRESENCE OF INTERFERING STATIONS

被引：0

作者：

Davydov, A. V. ^{[1
]}

Mal'tsev, A. A. ^{[1
]}

机构：

[1] NI Lobachevsky State Univ Nizhny Novgorod, Nizhnii Novgorod, Russia

来源：

RADIOPHYSICS AND QUANTUM ELECTRONICS | 2007年 / 50卷 / 06期

关键词：

Power Control; Noise Immunity; Frequency Selectivity; OFDM Symbol; Interference Noise;

D O I：

10.1007/s11141-007-0045-5

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：

We analyze noise immunity of high-speed data transmission systems operated in a complex communication channel with frequency-selective fadings and interference from the neighboring base stations. This problem is very topical for modern orthogonal frequency-division multiple-access (OFDMA) data transmission standards. Such digital communication systems allow one to measure the noise parameters on individual subcarriers simultaneously with reception useful signals. We perform comparative analysis of different methods for measuring the noise characteristics and using them for demodulating the coded signal. Four processing methods with different complexity and noise immunity degree are proposed for receiver signals. Characteristics of the considered receivers are compared for different channel loadings and algorithms of power control by interfering stations. Practical recommendations for using the considered receivers are given.

引用

页码：487 / 495

页数：9

共 50 条

[1] Analysis of noise immunity of OFDMA communication systems operated in the presence of interfering stations
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Radiophysics and Quantum Electronics, 2007, 50 : 487 - 495
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