Title :
A comparison of diversity schemes for a mixed-mode slow frequency-hopped cellular system
Author :
Chennakeshu, Sandeep ; Hassan, Amer ; Anderson, John
Author_Institution :
GE Corp. R&D, Schenactady, NY, USA
fDate :
29 Nov-2 Dec 1993
Abstract :
In this paper we analyze the capacity of a mixed-mode slow frequency-hopped TDMA-based cellular system for three different antenna diversity schemes. Namely, maximal ratio combining, equal gain combining and selection combining. Capacity is analyzed using a theoretical development of outage probability. Expressions of outage probability are provided for each diversity scheme. Considering mobile to base transmission, voice activity, power control and Reed-Solomon coding. The outage probabilities are expressed as functions of mobile locations. Capacity (users/MHz/cell) is evaluated from the outage probability expressions by simulating mobile locations for a system with 37 hexagonal cells. The capacities obtained for the different diversity schemes are compared and the effects of power control error and variation in voice activity factor are analyzed
Keywords :
Reed-Solomon codes; channel capacity; digital radio systems; diversity reception; frequency agility; mobile radio systems; power control; probability; spread spectrum communication; time division multiple access; Reed-Solomon coding; TDMA; antenna diversity; capacity; cellular system; equal gain combining; hexagonal cells; maximal ratio combining; mixed-mode slow frequency-hopping; mobile locations; outage probability; power control; power control error; selection combining; voice activity; voice activity factor; Bandwidth; Base stations; Capacity planning; Diversity reception; Error correction; Frequency diversity; Interchannel interference; Power control; Reed-Solomon codes; Time division multiple access;
Conference_Titel :
Global Telecommunications Conference, 1993, including a Communications Theory Mini-Conference. Technical Program Conference Record, IEEE in Houston. GLOBECOM '93., IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0917-0
DOI :
10.1109/GLOCOM.1993.318368
