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   Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite CommunicationsBandi, Ashok  ; Shankar, Bhavani ; Chatzinotas, Symeon et alin Bandi, Ashok; Shankar, Bhavani; Chatzinotas, Symeon (Eds.) et al Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite Communications (2019, December 09) Recent satellite standards enforce the coding of multiple users’ data in a frame. This transmission strategy mimics the well-known physical layer multigroup multicasting (MGMC). However, typical beam ... [more ▼] Recent satellite standards enforce the coding of multiple users’ data in a frame. This transmission strategy mimics the well-known physical layer multigroup multicasting (MGMC). However, typical beam coverage with a large number of users and limited frame length lead to the scheduling of only a few users. Moreover, in emerging aggressive frequency reuse systems, scheduling is coupled with precoding. This is addressed in this work, through the joint design of scheduling and precoding for frame-based MGMC satellite systems. This aim is formulated as the maximization of the sum-rate under per beam power constraint and minimum SINR requirement of scheduled users. Further, a framework is proposed to transform the non-smooth SR objective with integer scheduling and nonconvex SINR constraints as a difference-of-convex problem that facilitates the joint update of scheduling and precoding. Therein, an efficient convex-concave procedure based algorithm is proposed. Finally, the gains (up to 50%) obtained by the jointed design over state-of-the-art methods is shown through Monte-Carlo simulations. [less ▲] Detailed reference viewed: 105 (30 UL)A Joint Solution for Scheduling and Precoding in Multiuser MISO Downlink ChannelsBandi, Ashok ; Shankar, Bhavani ; Chatzinotas, Symeon et alin IEEE Transactions on Wireless Communications (2019) Detailed reference viewed: 126 (36 UL)A Novel Approach to Joint User Selection and Precoding for Multiuser MISO Downlink ChannelsBandi, Ashok ; Shankar, Bhavani ; Chatzinotas, Symeon et alin Bandi, Ashok; Shankar, Bhavani; maleki, Sina (Eds.) et al 6th IEEE Global Conference on Signal and Information Processing, November 26–29, 2018 Anaheim, California, USA (2018, November 26) Detailed reference viewed: 143 (49 UL)Sparsity-Aided Low-Implementation cost based On-Board beamforming Design for High Throughput Satellite SystemsBandi, Ashok in Bandi, Ashok; Joroughi, Vahid; Shankar, Bhavani (Eds.) et al 9th Advanced Satellite Multimedia Systems Conference (ASMS) and 15th Signal Processing for Space Communications Workshop (SPSC),Berlin, Sept. 10-12, 2018 (2018, September 10) Detailed reference viewed: 79 (10 UL)Structured Sparse Recovery Algorithms for Data Decoding in Media Based ModulationBandi, Ashok ; in International Conference on Communications, Paris 21-25 May 2017 (2017, May 21) Detailed reference viewed: 58 (3 UL) |
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