The fifth generation (5G) mobile communication system is expected to support various wireless communication services such as massive machine-type communications (mMTC), ultra-reliable low latency communications (URLLC), and enhanced mobile broadband (eMBB). These services will serve different numbers of terminals and have different requirements regarding the spectrum efficiency and fairness among terminals. Furthermore, different operators may have different policies regarding the overall spectrum efficiency and fairness among services. We propose a novel channel-dependent dynamic frequency bandwidth allocation method among service channels to maximize the defined system throughput that integrates the system performance of all services considering the above requirements. The proposed method jointly optimizes the time/frequency-domain scheduling and frequency bandwidth allocation among service channels in terms of maximizing the integrated system throughput. Since the proposed method can enhance the multi-user (multi-terminal) diversity gain by performing channel-aware scheduling across the terminals of all services, the integrated system throughput can be further improved compared to a semi-static frequency bandwidth allocation method among service channels previously reported by our group. Extensive computer simulation results show the effectiveness of the proposed method under various system operation scenarios.
Channel-Dependent Dynamic Frequency Bandwidth Allocation Method Among Service Channels to Maximize Integrated System Throughput
2018-08-01
303100 byte
Conference paper
Electronic Resource
English
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