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Browsing by Author "Balapuwaduge, Indika A. M."

Now showing items 1-5 of 5

A dynamic channel access strategy for underlay cognitive radio networks: Markov modelling and performance evaluation

Jalali, Elmira; Balapuwaduge, Indika A. M.; Li, Frank Y.; Pla, Vicent (2017)

[EN] Unlike in overlay cognitive radio networks, secondary users in underlay cognitive radio networks can access licensed spectrum even at the presence of a primary user, given that the interference caused by the secondary ...
Channel Assembling with Priority-based Queues in Cognitive Radio Networks: Strategies and Performance Evaluation

Balapuwaduge, Indika A. M.; Jiao, Lei; Pla, Vicent; Li, Frank Y. (Institute of Electrical and Electronics Engineers (IEEE), 2014-02)

[EN] With the implementation of channel assembling (CA) techniques, higher data rate can be achieved for secondary users in multi-channel cognitive radio networks. Recent studies which are based on loss systems show that ...
Dynamic Spectrum Reservation for CR Networks in the Presence of Channel Failures: Channel Allocation and Reliability Analysis

Balapuwaduge, Indika A. M.; Li, Frank; Pla, Vicent (Institute of Electrical and Electronics Engineers, 2018)

[EN] Providing channel access opportunities for new service requests and guaranteeing continuous connections for ongoing flows until service completion are two challenges for service provisioning in wireless networks. ...
On the Performance of Channel Assembling and Fragmentation in Cognitive Radio Networks

Jiao, Lei; Balapuwaduge, Indika A. M.; Li, Frank Y.; Pla, Vicent (Institute of Electrical and Electronics Engineers (IEEE), 2014)

[EN] Flexible channel allocation may be applied to multi-channel cognitive radio networks (CRNs) through either channel assembling (CA) or channel fragmentation (CF). While CA allows one secondary user (SU) occupy multiple ...
System Times and Channel Availability for Secondary Transmissions in CRNs: A Dependability Theory based Analysis

Balapuwaduge, Indika A. M.; Li, Frank Y.; Pla, Vicent (Institute of Electrical and Electronics Engineers, 2017)

[EN] Reliability is of fundamental importance for the performance of secondary networks in cognitive radio networks (CRNs). To date, most studies have focused on predicting reliability parameters based on prior statistics ...