Frontiers of Information Technology & Electronic Engineering
>> 2018,
Volume 19,
Issue 3
doi:
10.1631/FITEE.1700027
Orginal Article
Hybrid full-/half-duplex cellular networks: user admission and power control
Institute of Information and Communication Engineering, Zhejiang University, Hangzhou 310027, China.
Available online: 2018-05-28
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Abstract
We consider a single-cell network with a hybrid full-/half-duplex base station. For the practical scenario with channels, uplink users, and downlink users (max{ }≤ + ), we tackle the issue of user admission and power control to simultaneously maximize the user admission number and minimize the total transmit power when guaranteeing the quality-of-service requirement of individual users. We formulate a 0–1 integer programming problem for the joint-user admission and power allocation problem. Because finding the optimal solution of this problem is NP-hard in general, a low-complexity algorithm is proposed by introducing the novel concept of adding dummy users. Simulation results show that the proposed algorithm achieves performance similar to that of branch and bound algorithm and significantly outperforms the random pairing algorithm.
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