OFDM FOR DATA COMMUNICATION OVER MOBILE RADIO FM CHANNELS .1. ANALYSIS AND EXPERIMENTAL RESULTS

被引：37
作者：
CASAS, EF
LEUNG, C
机构：
[1] Department of Electrical Engineering, University of British Columbia, Vancouver, B.C
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 1991年 / 39卷 / 05期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1109/26.87141
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：
This paper describes the performance of OFDM/FM modulation for digital communication over Rayleigh-fading mobile radio channels. The use of orthogonal frequency division multiplexing (OFDM) over mobile radio channels was proposed by Cimini [1]. OFDM transmits blocks of bits in parallel and reduces the bit error rate (BER) by averaging the effects of fading over the bits in the block. OFDM/FM is a modulation technique in which the OFDM baseband signal is used to modulate an FM transmitter. OFDM/FM can be implemented simply and inexpensively by retrofitting existing FM communication systems. Expressions are derived for the BER and word error rate (WER) within a block when each subchannel is QAM-modulated. Several numerical methods are developed to evaluate the overall BER and WER. An experimental OFDM/FM system was implemented and tested using unmodified VHF FM radio equipment and a fading channel simulator. The BER and WER results obtained from the hardware measurements agree closely with the numerical results.
引用
收藏
页码：783 / 793
页数：11
相关论文
共 38 条
[1]   UHF WIDEBAND STATISTICAL-MODEL AND SIMULATION OF MOBILE RADIO MULTIPATH PROPAGATION EFFECTS [J].
BAJWA, AS .
IEE PROCEEDINGS-F RADAR AND SIGNAL PROCESSING, 1985, 132 (05) :327-333
[2]  
BALLARD M, 1988, BRIEF TECHNICAL OVER
[3]   SELECTIVE FADING LIMITATIONS OF KATHRYN MODEM AND SOME SYSTEM DESIGN CONSIDERATIONS [J].
BELLO, PA .
IEEE TRANSACTIONS ON COMMUNICATION TECHNOLOGY, 1965, CO13 (03) :320-&
[4]  
BERNARD SP, 1982, WORKSHOP COMMUNICATI
[5]  
Casas E. F., 1988, 38th IEEE Vehicular Technology Conference: `Telecommunications Freedom - Technology on the Move' (Cat. No.88CH2622-9), P212, DOI 10.1109/VETEC.1988.195362
[6]  
CASAS EF, 1989, THESIS U BRIT COLUMB
[7]   SYNTHESIS OF BAND-LIMITED ORTHOGONAL SIGNALS FOR MULTICHANNEL DATA TRANSMISSION [J].
CHANG, RW .
BELL SYSTEM TECHNICAL JOURNAL, 1966, 45 (10) :1775-+
[8]   A THEORETICAL STUDY OF PERFORMANCE OF AN ORTHOGONAL MULTIPLEXING DATA TRANSMISSION SCHEME [J].
CHANG, RW ;
GIBBY, RA .
IEEE TRANSACTIONS ON COMMUNICATION TECHNOLOGY, 1968, CO16 (04) :529-&
[9]   ANALYSIS AND SIMULATION OF A DIGITAL MOBILE CHANNEL USING ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING [J].
CIMINI, LJ .
IEEE TRANSACTIONS ON COMMUNICATIONS, 1985, 33 (07) :665-675
[10]   A STATISTICAL THEORY OF MOBILE-RADIO RECEPTION [J].
CLARKE, RH .
BELL SYSTEM TECHNICAL JOURNAL, 1968, 47 (06) :957-+
1234