Title :
Accurate CDMA BER calculations with low computational complexity
Author :
Morrow, Robert K., Jr.
Author_Institution :
Morrow Tech. Services, Centerville, IN, USA
fDate :
11/1/1998 12:00:00 AM
Abstract :
An accurate approximation for calculating bit error rates in direct sequence code division multiple access (CDMA) radio systems using binary phase shift keyed (BPSK) signaling is presented. All interfering users are assumed to employ random signature sequences, but the desired signal can be structured with either a random or a deterministic spreading code. Bit error probabilities are given for signals having carrier phase or chip offsets that are either deterministic or random. Computational complexity of all calculations is O(1)
Keywords :
Gaussian distribution; binary sequences; code division multiple access; computational complexity; error statistics; phase shift keying; pseudonoise codes; spread spectrum communication; BER calculations; BPSK signaling; DS-CDMA radio systems; Gaussian approximation; accurate approximation; binary phase shift keying; bit error probabilities; bit error rates; carrier phase offsets; chip offsets; desired signal; deterministic spreading code; direct sequence code division multiple access; interfering users; low computational complexity; random signature sequences; random spreading code; AWGN; Binary phase shift keying; Bit error rate; Computational complexity; Direct-sequence code-division multiple access; Gaussian approximation; Multiaccess communication; Multiple access interference; Signal processing; Software algorithms;
Journal_Title :
Communications, IEEE Transactions on
