Markov Model for Admission Control in the Wireless AMC Networks

Eunhyun KWON, Hun-je YEON, Jaiyong LEE, Kyunghun JUNG

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Summary :

In wireless adaptive modulation and coding (AMC) systems, modulation type of a user's connection can change and the ongoing connection might fail due to the change of modulation. In this paper, we approach the AMC-induced call admission control (CAC) problem by focusing on the guaranteed connection. Three classes of calls, new, handoff, and modulation-changed, are considered. We modify the guard-channel CAC scheme such that the modulation-changed calls, in addition to the handoff calls, are allowed to use the guard channel. Then we analyze a Markov model for the CAC scheme designed with long-term AMC in mind. The proposed approach will be an essential tool to determine the guard-channel thresholds in the wireless AMC networks.

Publication
IEICE TRANSACTIONS on Communications Vol.E89-B No.8 pp.2230-2233
Publication Date
2006/08/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e89-b.8.2230
Type of Manuscript
LETTER
Category
Network

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