Title :
Capture probability and throughput analysis of slotted ALOHA and unslotted np-ISMA in a Rician/Rayleigh environment
Author :
Widipangestu, Iguh ; Jong, A.J.´T. ; Prasad, Ramjee
Author_Institution :
Telecommun. & Traffic-Control Syst. Group, Delft Univ. of Technol., Netherlands
fDate :
8/1/1994 12:00:00 AM
Abstract :
The performance of mobile radio communication systems is analyzed, in terms of the capture probability and throughput, for the slotted ALOHA and the unslotted np-ISMA (nonpersistent inhibit sense multiple access) protocol with receiver capture. The influence of Rayleigh faded interference and additive white Gaussian noise (AWGN) is studied on the performance of the two protocols considering BPSK (binary phase shift keying) modulated desired test signal, which suffers from Rician fading and the near-far effect. BCH (Bose Chaudhuri Hocquenghem) error correction codes consisting of packets with equal numbers of bits are introduced to improve the performance of the system, considering both fast and slow multipath fading
Keywords :
BCH codes; channel capacity; error correction codes; fading; mobile radio systems; multi-access systems; packet switching; phase shift keying; probability; protocols; radiofrequency interference; signal detection; BCH error correction codes; BPSK; Bose Chaudhuri Hocquenghem error correction codes; Rayleigh environment; Rician fading; additive white Gaussian noise; binary phase shift keying; capture probability; interference; mobile radio communication systems; multipath fading; near-far effect; nonpersistent inhibit sense multiple access protocol; packets; performance; slotted ALOHA; throughput analysis; unslotted np-ISMA; AWGN; Access protocols; Additive white noise; Binary phase shift keying; Interference; Land mobile radio; Performance analysis; Phase modulation; Receivers; Throughput;
Journal_Title :
Vehicular Technology, IEEE Transactions on
