The rapid progression in wireless networking has raised the demand of extra spectrum
bands. The current fixed spectrum allocation policy used by the government agencies is …

Cognitive communication model perform the investigation and surveillance of spectrum in
cognitive radio networks abetment in advertent primary users (PUs) and in turn help in …

Cognitive radio networks are an innovative technology that focuses on the radical shift in
both radio and networking technologies that ensemble with the potential to provide major …

Generation and allocation of Target Channel Sequence (TCS) in relation to spectrum
handoff introduces several challenges in a multi-user Cognitive Radio Network. The primary …

Recently, cognitive radio (CR) technology has emerged as a promising solution to alleviate
the spectrum scarcity problem. CR technology allows an unlicensed user to exploit the …

This paper focuses on spectrum handover in cognitive radio networks where secondary
users (SUs) opportunistically use licensed channels as long as the aggregate interference at …

While primary users (PU) arrive in cognitive radio networks, the current spectrum handoff
scheme is that secondary users (SU) have to vacate the spectrum bands which is used and …

Abstract Quality of Service (QoS) aware spectrum handoff operation is critical for Secondary
Users (SUs) executing real-time applications like Voice over IP (VoIP) in Cognitive Radio …

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为解决认知无线电网络中频谱切换机制问题, 以提高连接保持概率和频谱利用率,
降低频谱切换延迟, 综合考虑了频谱质量和次用户的业务差异性, 将可用频谱资源进行分类并 …