摘要
In this paper</span><span style="font-family:"">,</span><span style="font-family:""> in order to attain the maximum ergodic capacity and signifi</span><span style="font-family:"">cantly increase the spectral efficiency of wireless communication systems, novel linear beamforming is proposed for dual-hop amplify-and-forward (AF) multi-relay networks. The linear beamforming is designed based on the maximi<span>zation of the signal-to-interference-plus-noise ratio (SINR) and signal-to</span>-</span><span style="font-family:""> </span><span style="font-family:"">leakage-and-noise ratio (SLNR). The channel state information (CSI) is used <span>in applying this new design to multi-relay (MR) nodes between the source</span> and relays as well as relays and destination. The beamforming optimization <span>problem is solved by using the Fukunaga-Koontz Transform (FKT). The</span> scheme can achieve intra-node array and distributed gains by using multiple antennas and multi-relays (MRs). The performance of the proposed scheme demonstrates that by considering interference mitigation criteria the ergodic capaci<span>ty at a significant level is improved as compared to the conventional tech</span>niques. Therefore, the proposed techniques based on the maximization of the <span>signal-to-interference-plus-noise ratio (SINR) and sig</span>nal-to-leakage-and-noise ratio (SLNR) relay processing outperform other conventional techniques in case of a multi-relay dual-hop network in terms of ergodic.
In this paper</span><span style="font-family:"">,</span><span style="font-family:""> in order to attain the maximum ergodic capacity and signifi</span><span style="font-family:"">cantly increase the spectral efficiency of wireless communication systems, novel linear beamforming is proposed for dual-hop amplify-and-forward (AF) multi-relay networks. The linear beamforming is designed based on the maximi<span>zation of the signal-to-interference-plus-noise ratio (SINR) and signal-to</span>-</span><span style="font-family:""> </span><span style="font-family:"">leakage-and-noise ratio (SLNR). The channel state information (CSI) is used <span>in applying this new design to multi-relay (MR) nodes between the source</span> and relays as well as relays and destination. The beamforming optimization <span>problem is solved by using the Fukunaga-Koontz Transform (FKT). The</span> scheme can achieve intra-node array and distributed gains by using multiple antennas and multi-relays (MRs). The performance of the proposed scheme demonstrates that by considering interference mitigation criteria the ergodic capaci<span>ty at a significant level is improved as compared to the conventional tech</span>niques. Therefore, the proposed techniques based on the maximization of the <span>signal-to-interference-plus-noise ratio (SINR) and sig</span>nal-to-leakage-and-noise ratio (SLNR) relay processing outperform other conventional techniques in case of a multi-relay dual-hop network in terms of ergodic.
作者
Ali Mahamoud Ali
Bakhit Amine Adoum
Idriss Saleh Bachar
Mahamoud Youssouf Khayal
Ali Mahamoud Ali;Bakhit Amine Adoum;Idriss Saleh Bachar;Mahamoud Youssouf Khayal(Laboratoire de Mathématiques, Modélisation, Informatique, Applications et Simulation, LARTIC, FSEA/école Doctorale Sciences Techniques et Environnement, CNRD, Université de N’Djamena, N’Djamena, Tchad;Ecole Nationale Superieure des Technologies de l’Information et de la Communication (ENASTIC), N’Djamena, Tchad)
