Providing QoS in a cognitive radio network

Kartheek, M and Sharma, Vinod (2012) Providing QoS in a cognitive radio network. In: 2012 Fourth International Conference on Communication Systems and Networks (COMSNETS), 3-7 Jan. 2012, Bangalore.

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Abstract

We consider the problem of wireless channel allocation (whenever the channels are free) to multiple cognitive radio users in a Cognitive Radio Network (CRN) so as to satisfy their Quality of Service (QoS) requirements efficiently. The CRN base station may not know the channel states of all the users. The multiple channels are available at random times. In this setup Opportunistic Splitting can be an attractive solution. A disadvantage of this algorithm is that it requires the metrics of all users to be an independent, identically distributed sequence. However we use a recently generalized version of this algorithm in which the optimal parameters are learnt on-line through stochastic approximation and metrics can be Markov. We provide scheduling algorithms which maximize weighted-sum system throughput or are throughput or delay optimal. We also consider the scenario when some traffic streams are delay sensitive.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright of this article belongs to IEEE.
Keywords:	Cognitive Radio; Quality of Service; Opportunistic Splitting; Spectrum Management
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	06 Feb 2014 07:44
Last Modified:	06 Feb 2014 07:44
URI:	http://eprints.iisc.ac.in/id/eprint/48342

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