Multiuser Admission Control and Beamforming Optimization Algorithms for MISO Heterogeneous Networks

8 years 15 days ago

Download www.researchgate.net

This paper investigates the problem of joint multiuser admission control and beamforming optimization for multiple input single-output heterogeneous networks (HetNets). Considered is a HetNet where multiple newly deployed femtocell base stations (FBSs) have the coverage overlapped with that of an existing macrocell base-station (MBS). The design objective is to serve as many femto users (FUEs) as possible at their quality-of-service (QoS) requirements while maintaining the QoS requirements at the macro user (MUE). This paper then proposes three algorithmic schemes to perform multiuser admission control and beamforming optimization based on the levels of coordination between the MBS and FBSs. In Scheme I with full MBS-FBS coordination, a joint optimization framework is presented, and two solution approaches are proposed to determine the admission control and beamforming design for the FUEs in a centralized manner. In Scheme II with limited MBS-FBS coordination, a distributed algorithm t...

Duy H. N. Nguyen, Long Bao Le, Tho Le-Ngoc

Real-time Traffic