Joint hierarchical modulation and network coding for two way relay networks
المؤلف | Ahmad R. |
المؤلف | Hasna , Mazen |
تاريخ الإتاحة | 2022-04-26T11:06:55Z |
تاريخ النشر | 2012 |
اسم المنشور | IEEE Vehicular Technology Conference |
المصدر | Scopus |
المعرّف | http://dx.doi.org/10.1109/VETECS.2012.6240272 |
الملخص | The performance of a joint Hierarchical Modulation (HM) and Network Coding (NC) scheme for two way relay networks is introduced and evaluated in this paper. The proposed scheme uses selective relaying based on a signal-to-noise (SNR) threshold at the relay. In particular, a two way cooperative network with two sources and one relay is considered. Two different protection classes are modulated by a hierarchical 4/16-Quadrature Amplitude Modulation (QAM) constellation at the source. Based on the instantaneous received SNR at the relay, the relay decides to retransmit both classes by using a hierarchical 4/16-QAM constellation, the more- protection class by using a Quadrature Phase Shift Keying (QPSK) constellation, or remains silent. These thresholds at the relay give rise to multiple transmission scenarios in a two way cooperative network. Simulation results verify our analysis and efficacy of the scheme. |
اللغة | en |
الناشر | IEEE |
الموضوع | Cooperative networks Hierarchical modulation Multiple transmission Signal to noise Two sources Two-way relay networks Network coding Relay control systems Signal to noise ratio Quadrature amplitude modulation |
النوع | Conference |
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