Title :
Generalized fixed channel assignment in microcellular communication systems
Author :
Chu, Tai-Po ; Rappaport, Stephen S.
Author_Institution :
Dept. of Electr. Eng., State Univ. of New York, Stony Brook, NY, USA
fDate :
8/1/1994 12:00:00 AM
Abstract :
Overlapping coverage areas of nearby base stations arise naturally in cellular communication systems-especially in small-cell, high-capacity microcellular configurations. Because of overlap, users may have access to channels at more than one base station. With an appropriate control strategy, this enhanced access can be used to improve teletraffic performance characteristics. The authors consider a generalized fixed channel assignment scheme with priority for hand-off calls. The scheme systematically accounts for and exploits coverage overlap in its channel assignment strategy. An analytically tractable model is developed for a linear array of cells, such as those that might be used along a highway. The effects of shadow fading are included. Overall performance characteristics that are computed account for both signal availability and channel availability. Blocking probability, forced termination probability, hand-off activity, and carried traffic are determined
Keywords :
cellular radio; frequency allocation; mobile radio systems; telecommunication traffic; blocking probability; carried traffic; channel assignment strategy; channel availability; control strategy; forced termination probability; generalized fixed channel assignment; hand-off calls; linear array of cells; microcellular communication systems; nearby base stations; overlapping coverage areas; performance characteristics; shadow fading; signal availability; teletraffic performance; Availability; Base stations; Communication system control; Communication system traffic; Control systems; Fading; Interference constraints; Mobile communication; Road transportation; Traffic control;
Journal_Title :
Vehicular Technology, IEEE Transactions on