Showing 1 - 8 results of 8 for search '"Bell Labs"', query time: 0.07s Refine Results
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    Performance study on a novel VBLAST modulation scheme under SUC detection by JIANG Zhan-jun, PAN Wen, WANG Yan, YOU Xiao-hu

    Published 2009-01-01
    “…A new modulation scheme was proposed to deal with the error propagation(EP) existing during the successive cancellation(SUC) detection in the VBLAST(vertical Bell labs layered space-time) system.In the scheme,the former demodulated signal was designed to use the modulation with better noise suppression performance(e.g.binary phase shift keying modulation),and the latter demodulated signal was suggested to employ the modulation with higher frequency ef-ficiency(e.g.multi-decimal modulations).Analysis and simulation results show that system reliability for SUC detection is improved without penalty to the system availability.…”
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    Space-time coding scheme for the paired weak user in MIMO-NOMA systems by Mingyan GONG, Zhen YANG

    Published 2018-06-01
    “…In view of the paired weak user’s poor outage performance in multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) systems,Alamouti code was adopted to encode for the weak user in order to improve its outage performance by means of diversity,and the closed-form expression of the strong user’s ergodic capacity as well as the boundary-form expressions of the weak user’s ergodic capacity and outage probability was derived in the proposed model.Moreover,a power allocation algorithm for optimizing the system’s throughput was proposed.Finally,the numerical results show the accuracy of the derived expressions,the efficacy of the proposed algorithm,and that the weak user’s outage performance in the proposed coding scheme is far superior to that in the current coding scheme only adopting vertical Bell lab layered space-time (V-BLAST) code.…”
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