Title :
A hybrid DS/FH spread spectrum system for mobile radio channel: Performance and capacity analysis
Author :
Asmer, Hikmet ; Sheikh, Asrar U. ; Gulliver, T. Aaron
Author_Institution :
Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada
Abstract :
The performance of a hybrid direct sequence/frequency hopped (DS/FH) spread spectrum multiple access communication system is evaluated. The modulation considered is quadrature phase shift keying modulation. A mobile radio channel is investigated in the presence of interference and noise. Both deterministic and random signature sequences and memoryless random frequency-hopping patterns are considered. The maximum number of simultaneous users (capacity) at a desired level of bit error probability (10-3 - 10-2) and the spectrum efficiency are considered as performance measures. Simulation results for both synchronous and asynchronous hybrid systems are presented
Keywords :
channel capacity; error statistics; frequency hop communication; memoryless systems; mobile radio; multi-access systems; quadrature phase shift keying; spread spectrum communication; asynchronous hybrid systems; bit error probability; capacity; deterministic signature sequences; direct sequence; interference; memoryless random frequency-hopping patterns; mobile radio channel; noise; performance; quadrature phase shift keying; random signature sequences; spectrum efficiency; spread spectrum multiple access communication system; synchronous hybrid systems; Channel capacity; Fading; Frequency; Land mobile radio; Performance analysis; Personal communication networks; Phase modulation; Quadrature phase shift keying; Radio transmitters; Spread spectrum communication;
Conference_Titel :
Vehicular Technology Conference, 1993., 43rd IEEE
Conference_Location :
Secaucus, NJ
Print_ISBN :
0-7803-1267-8
DOI :
10.1109/VETEC.1993.507199
