Title :
FH-SSMA with band-efficient modulations over cellular radio channels
Author :
Correia, Americo M C ; Albuquerque, Augusto A.
Author_Institution :
Inst. Superior Tecnico, Lisbon, Portugal
Abstract :
We present frequency hopped spread-spectrum multiple-access (FH-SSMA) employing band-efficient modulations that are phase-continuous during each hop. The particular cases of minimum-shift keying (MSK), and Gaussian minimum-shift keying (GMSK) are studied in detail. Noncoherent sequence estimation on a hop-by-hop basis is considered. Has been evaluated in selective Rayleigh fading with additive white Gaussian noise (AWGN) and the presence of multiple-access cellular interference. Power control is employed for improving the BER performance. This system performance is better than the performance of FH-SSMA with noncoherent binary FSK modulation
Keywords :
Gaussian noise; Rayleigh channels; cellular radio; continuous phase modulation; estimation theory; fading; frequency hop communication; land mobile radio; minimum shift keying; multi-access systems; pseudonoise codes; radiofrequency interference; spread spectrum communication; white noise; AWGN; BER performance; FH-SSMA; GMSK; Gaussian minimum-shift keying; MSK; additive white Gaussian noise; band-efficient modulations; cellular radio channels; frequency hopped spread-spectrum multiple-access; minimum-shift keying; multiple-access cellular interference; noncoherent sequence estimation; power control; selective Rayleigh fading channel; system performance; AWGN; Additive white noise; Bit error rate; Frequency shift keying; Land mobile radio cellular systems; Multiple access interference; Phase modulation; Power control; Rayleigh channels; Spread spectrum communication;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1994. IEEE ISSSTA '94., IEEE Third International Symposium on
Conference_Location :
Oulu
Print_ISBN :
0-7803-1750-5
DOI :
10.1109/ISSSTA.1994.379591
