Title :
Performance evaluation of DS-CDMA system with M-ary orthogonal signaling
Author :
Een Kee Hong ; Ki Jun Kim ; Keum Chan Whang
Author_Institution :
Dept. of Electr. Eng., Yonsei Univ., Seoul
fDate :
2/1/1996 12:00:00 AM
Abstract :
The effects of signature sequence on the performance of direct-sequence code-division multiple-access (DS-CDMA) systems employing Walsh M-ary orthogonal signaling are considered. The mean-squared value of multiple access interference (MAI) is derived by treating the signature sequence as deterministic. The numerical results show that Walsh orthogonal signaling changes the original properties of signature sequences, and a different choice of signature sequence results in significant performance difference. These results can be used as guides in selecting signature sequences for systems that employ Walsh M-ary orthogonal signaling
Keywords :
Walsh functions; code division multiple access; pseudonoise codes; radiofrequency interference; spread spectrum communication; telecommunication signalling; DS-CDMA system; Walsh M-ary orthogonal signaling; deterministic sequence; direct sequence code division multiple access; mean-squared value; multiple access interference; numerical results; performance evaluation; signature sequence; Autocorrelation; Bandwidth; Communication industry; Fading; Multiaccess communication; Multiple access interference; Random sequences; Signal processing; Spread spectrum communication; Telecommunications;
Journal_Title :
Vehicular Technology, IEEE Transactions on
