Title :
Throughput-delay analysis of frequency hopped NPCSMA in indoors Rician fading cellular channels
Author :
Hmimy, H.H. ; Gupta, Someshwar C.
Author_Institution :
Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA
Abstract :
The probability of packet retransmission is evaluated for SFH-NCFSK in indoor Rice fading channels for microcell structure at 800/900 MHz. The channel throughput-delay analysis for NPCSMA is evaluated and simulated for indoor Rician fading channels. The channel throughput-delay characteristics are degraded due to fading and shadowing. A new random multiple access protocol, which combines the advantages of frequency hopping spread spectrum (FH-SS) and carrier sense multiple access (CSMA), is introduced. The system throughput-delay characteristics are analytically derived in noiseless channels and in cellular channels. Monte Carlo simulation is used to verify the analytical results
Keywords :
Monte Carlo methods; Rician channels; access protocols; carrier sense multiple access; cellular radio; channel capacity; delays; fading; frequency hop communication; indoor radio; packet radio networks; random processes; spread spectrum communication; Monte Carlo simulation; SFH-NCFSK; carrier sense multiple access; channel throughput-delay analysis; frequency hopped NPCSMA; frequency hopping spread spectrum; indoors Rician fading cellular channels; microcell structure; noiseless channels; packet retransmission; probability; random multiple access protocol; shadowing; throughput-delay analysis; Access protocols; Analytical models; Degradation; Fading; Frequency; Microcell networks; Multiaccess communication; Rician channels; Shadow mapping; Spread spectrum communication;
Conference_Titel :
Computers and Communications, 1996., Conference Proceedings of the 1996 IEEE Fifteenth Annual International Phoenix Conference on
Conference_Location :
Scottsdale, AZ
Print_ISBN :
0-7803-3255-5
DOI :
10.1109/PCCC.1996.493649
