NDLI: Impact of the number of ISM-band ad hoc relay channels on the performance of iCAR systems

Content Provider	IEEE Xplore Digital Library
Author	Yanmaz, E. Tonguz, O.K. Mishra, S. Hongyi Wu Chunming Qiao
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA (Yanmaz, E.; Tonguz, O.K.)
Abstract	One of the common problems faced by the wireless service providers worldwide is coping with congestion or hot spots. To handle this hot spot problem, methods that combine the existing cellular networks with ad hoc networks have been proposed. Integrated Cellular and Ad Hoc Relay (iCAR) system employs ad hoc relay stations (ARSs) within the cellular network to balance traffic loads efficiently and to share channels between cells via primary and secondary relaying. These ARSs operate in the ISM band, and therefore, do not cause interference to the cellular band. When analyzing the performance of WAR systems, there are several factors that should be taken into account These factors include the coverage area of the ARSs, the number of ARS channels, the placement of ARSs, etc. In this paper, the impact of the number of ARS channels on the performance of WAR systems is studied. To this end, a multi-dimensional Markov-chain analysis is performed for a simplified two-cell system model. Results show that, with a proper amount of ARS coverage within each cell the call blocking probabilities can be decreased significantly with a small number of channels. Results also suggest that by increasing the number of ARS channels perfect load balancing can be achieved.
Starting Page	1492
Ending Page	1496
File Size	493960
Page Count	5
File Format	PDF
ISBN	0780374843
DOI	10.1109/VTC.2002.1002865
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Telecommunication traffic Ad hoc networks Land mobile radio cellular systems Cellular networks Load management Computer science Interference Performance analysis Mobile communication
Content Type	Text
Resource Type	Article

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