Performance analysis of relay selection schemes in underlay cognitive networks with Decode and Forward relaying
المؤلف | Chamkhia H. |
المؤلف | Hasna , Mazen |
المؤلف | Hamila R. |
المؤلف | Hussain S.I. |
تاريخ الإتاحة | 2022-04-26T11:06:54Z |
تاريخ النشر | 2012 |
اسم المنشور | IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC |
المصدر | Scopus |
المعرّف | http://dx.doi.org/10.1109/PIMRC.2012.6362594 |
الملخص | In underlay cognitive networks with regenerative relaying, secondary users operating with primary user are adhering to stringent interference constraint which limits their transmission power and coverage area. In order not to violate this interference limit, underlay network will make the use of relays to transmit signal over the secondary network. The retransmitting relay will be selected among the available secondary users; hence, relay selection becomes more challenging due to strict interference limits. Relay selection is based not only on interference limit, but also on threshold constraint which ensure the satisfactory reception of the signal by the relays and the destination and which is an important criterion since the relaying protocol used is Decode and Forward (DF). This paper proposes three new relay selection schemes based on relay to destination link and relay to primary link qualities. We derive closed form expressions of the probability density function (PDF) of the SNR at the secondary destination, the outage probability and the average bit error probability. Analytical results are validated by simulations and they provide comparative analysis of the different relay selection scheme proposed herein. |
اللغة | en |
الناشر | IEEE |
الموضوع | Analytical results Average bit error probability Closed-form expression Cognitive network Comparative analysis Coverage area Decode and forward Decode-and-forward relaying Interference constraints Link quality Outage probability Performance analysis Probability density function (pdf) Regenerative relaying Relay selection Secondary networks Transmission power Underlay networks Cognitive radio Probability density function Telecommunication repeaters Telecommunication networks |
النوع | Conference |
الصفحات | 1552-1558 |
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