Title :
A slotted ALOHA packet radio system with multiple antennas and receivers
Author :
Lau, Chiew T. ; Leung, Clement
Author_Institution :
Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada
fDate :
8/1/1990 12:00:00 AM
Abstract :
The problem of data transmission in a mobile packet radio system with one central base station and a number of mobile terminals is addressed. A method using multiple directional antennas and receivers at the base station to improve the efficiency of transmission on the inbound channel (from the terminals to the base station) is proposed. A number of channel models are considered, including flat terrestrial propagation loss, Rayleigh fading, and noise. A finite population Markov model is used to obtain the throughput of a multiantenna and multireceiver slotted ALOHA system. Numerical results indicate that substantial gains are possible with the use of several antennas and receivers. The dynamic behavior of the system is also improved
Keywords :
Markov processes; antenna radiation patterns; directive antennas; fading; mobile radio systems; packet switching; protocols; radio receivers; telecommunication traffic; Rayleigh fading; antenna patterns; channel traffic; dynamic behavior; finite population Markov model; flat terrestrial propagation loss; mobile packet radio system; multiple directional antennas; multireceiver slotted ALOHA system; noise channel model; Base stations; Data communication; Directional antennas; Packet radio networks; Propagation losses; Rayleigh channels; Receivers; Receiving antennas; Slot antennas; Throughput;
Journal_Title :
Vehicular Technology, IEEE Transactions on
