Title :
Optical PPM-CDMA systems using EWOC
Author :
Nanao, Shinji ; Yashima, Hiroyuki ; Suzuki, Jouji ; Ohtsuki, Tomoaki
Author_Institution :
Dept. of Inf. & Comput. Sci., Saitama Univ., Urawa, Japan
Abstract :
Optical synchronous code-division multiple-access (CDMA) systems with M-ary pulse-position modulation (PPM) signaling using equal-weight orthogonal code (EWOC) are investigated. Sets of signature sequence based on modified prime sequences enable variable throughput transmission. We derive the bit error rate (BER) of the system from the probability density function of the correlation value. We show the performance tradeoff among the number of users, throughput and BER
Keywords :
access protocols; code division multiple access; codes; coding errors; error statistics; optical communication; optical correlation; optical modulation; probability; pulse position modulation; sequences; telecommunication signalling; BER; EWOC; M-ary pulse position modulation; PPM signaling; bit error rate; correlation; equal weight orthogonal code; modified prime sequences; optical PPM-CDMA systems; probability density function; signature sequence; synchronous code division multiple access; variable throughput transmission; Bit error rate; Modulation coding; Multiaccess communication; Optical modulation; Optical pulses; Optical receivers; Optical transmitters; Probability density function; Pulse modulation; Throughput;
Conference_Titel :
Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-3905-3
DOI :
10.1109/PACRIM.1997.619892
