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QoS Priority Based Femtocell User Power Control for Interference Mitigation in 3GPP LTE-A HetNet
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 Title & Authors
QoS Priority Based Femtocell User Power Control for Interference Mitigation in 3GPP LTE-A HetNet
Ahmad, Ishtiaq; Kaleem, Zeeshan; Chang, KyungHi;
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 Abstract
In recent years, development of femtocells are receiving considerable attention towards increasing the network coverage, capacity, and improvement in the quality of service for users. In 3GPP LTE-Advanced (LTE-A) system, to efficiently utilize the bandwidth, femtocell and macro cell uses the same frequency band, but this deployment poses a technical challenge of cross-tier interference to macro users. In this paper, the novel quality of service based fractional power control (QoS-FPC) scheme under the heterogeneous networks environment is proposed, which considers the users priority and QoS-requirements during the power allocation. The proposed QoS-FPC scheme has two focal points: firs, it protects the macrocell users uplink communication by limiting the cross-tier interference at eNB below a given threshold, and second, it ensures the optimization of femtocell users power allocation at each power adjustment phase. Performance gain is demonstrated with extensive system-level simulations to show that the proposed QoS-FPC scheme significantly decreases the cross-tier intereference and improves the overall users throughput.
 Keywords
QoS-FPC;Power Control;Interference Mitigation;HetNet;3GPP LTE-A;
 Language
English
 Cited by
1.
LTE-Railway User Priority-Based Cooperative Resource Allocation Schemes for Coexisting Public Safety and Railway Networks, IEEE Access, 2017, 5, 2169-3536, 7985  crossref(new windwow)
2.
Interference-Aware Uplink Power Control in 3GPP LTE-A HetNet, Wireless Personal Communications, 2017, 94, 3, 1057  crossref(new windwow)
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