On Hybrid Cooperation in Underlay Cognitive Radio Networks
46th Asilomar Conference on Signals, Systems and Computers, California, Amerika Birleşik Devletleri, 4 - 07 Kasım 2012, ss.308-312, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/acssc.2012.6489013
- Basıldığı Şehir: California
- Basıldığı Ülke: Amerika Birleşik Devletleri
- Sayfa Sayıları: ss.308-312
- Yıldız Teknik Üniversitesi Adresli: Hayır
Özet
In wireless systems where transmitters are subject to a strict received power constraint, such as in underlay cognitive radio networks, cooperative communication is a promising strategy to enhance network performance, as it helps to improve the coverage area and outage performance of a network. However, this comes at the expense of increased resource utilization. To balance the performance gain against the possible over-utilization of resources, we propose a hybrid-cooperation technique for underlay cognitive radio networks, where secondary users cooperate only when required. Various performance measures of the proposed hybrid-cooperation technique are analyzed in this paper, and are also further validated numerically.