NDLI: Capacity Analysis and Call Admission Control in Distributed Cognitive Radio Networks

Content Provider	IEEE Xplore Digital Library
Author	Gunawardena, S. Weihua Zhuang
Copyright Year	2002
Abstract	In this paper, homogeneous voice traffic in a single-channel cognitive radio network (CRN) is considered. We analyze the constant-rate voice capacity of a fully-connected network with slot-ALOHA and round-robin channel access, and propose two call admission control (CAC) algorithms for a non-fully-connected network with slot-ALOHA channel access. Different from the existing work in literature, transmission of multiple packets in a single time-slot is considered. Two discrete-time Markov chain based approaches are used for the capacity analysis of the two channel access schemes, respectively. It is shown that the number of voice packets that can be transmitted in a time-slot has a significant impact on the system capacity. The capacity analysis results of the slot-ALOHA scheme is used to develop a CAC procedure when all the voice flows have an identical statistical delay requirement. Further, two CAC algorithms (A1 and A2) are developed for a network with voice traffic flows having different delay requirements in which one (A1) is based on the theory of effective capacity and is considered as a benchmark to compare with the other. Simulation results demonstrate that algorithm A2 performs better than algorithm A1, and that a relaxed delay requirement leads to an increase in the network capacity.
Starting Page	3110
Ending Page	3120
Page Count	11
File Size	409775
File Format	PDF
ISSN	15361276
Volume Number	10
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Markov processes Availability Quality of service Permission Cognitive radio round-robin Cognitive radio network voice capacity quality-of-service call admission control slot-ALOHA
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (TO APPEAR) 1 Capacity Analysis and Call Admission Control in Distributed Cognitive Radio Networks

Voice Capacity of Cognitive Radio Networks for Both Centralized and Distributed Channel Access Control

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On-off voice capacity of single-hop cognitive radio networks with distributed channel access control

Analysis of call admission control for multiservice cognitive radio networks.

Erlang capacity in coordinated cognitive radio networks with stringent-delay applications

Optimal call admission control with QoS guarantee in a voice/data integrated cellular network

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Capacity Analysis and Call Admission Control in Distributed Cognitive Radio Networks

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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (TO APPEAR) 1 Capacity Analysis and Call Admission Control in Distributed Cognitive Radio Networks

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