A Joint Hybrid-ARQ and Opportunistic InterferenceAlignment based Sum Rate Maximization forCognitive Radio Networks

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dc.contributor.author Mittal, Krati
dc.contributor.author Sharma, Neha
dc.contributor.author Bankar, Nilesh
dc.contributor.author Rawal, Divyang
dc.date.accessioned 2021-09-16T17:36:07Z
dc.date.available 2021-09-16T17:36:07Z
dc.date.issued 2019-03-10
dc.identifier.uri http://repo.sltc.ac.lk/handle/1/99
dc.description.abstract An efficient amalgamation of Opportunistic Inter-ference Alignment (OIA) with Hybrid- Automatic Repeat Request(ARQ) for sum rate maximization of secondary transmission incognitive environment is proposed. Literature survey exhibits ca-pacity improvement by virtue of availability of additional degreeof freedom in spatial domain due to Interference Alignment (IA).Also, the exploitation of opportunities provided during the ARQtransmission results in capacity enhancement of unlicensed user.In the proposed scheme, the secondary user opportunisticallytakes the advantage of spatial degree of freedom available during the primary re transmission. During re transmission, the primaryuser reduces the power allocation in multiple transmitting an-tennis to achieve the same BER performance, thus reducingthe interference caused at the secondary user. This results inimproved sum rate at the secondary user. Simulation resultsshows the significant achievement in the data rates with theemployment of joint ARQ retransmission and OIA technique en_US
dc.language.iso en en_US
dc.publisher ETIC conference en_US
dc.subject Interference Alignment en_US
dc.subject Cognitive Radio en_US
dc.subject Capacity en_US
dc.title A Joint Hybrid-ARQ and Opportunistic InterferenceAlignment based Sum Rate Maximization forCognitive Radio Networks en_US
dc.type Article en_US


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