QoS Self-Provisioning and Interference Management for Co-Channel Deployed 3G Femtocells

Future Internet

Troels Kolding¹  Pawel Ochal¹  Niels Terp Kjeldgaard Jørgensen² 

[1] Nokia Siemens Networks, Research Center Aalborg, Niels Jernes Vej 10, 9220 Aalborg, Denmark; E-Mails:;Radio Access Technology, Department of Electronic Systems, Aalborg University, Niels Jernes Vej 12 A6-1, 9220 Aalborg, Denmark

关键词: 3G and/or WCDMA;    femtocell and/or home NodeB;    QoS provisioning;    interference management;    network listen mode;   

DOI  :  10.3390/fi5020168

来源: mdpi

【 摘 要 】

A highly efficient self-provisioning interference management scheme is derived for 3G Home Node-Bs (HNB). The proposed scheme comprises self-adjustment of the HNB transmission parameters to meet the targeted QoS (quality of service) requirements in terms of downlink and uplink guaranteed minimum throughput and coverage. This objective is achieved by means of an autonomous HNB solution, where the transmit power of pilot and data are adjusted separately, while also controlling the uplink interference pollution towards the macro-layer. The proposed scheme is evaluated by means of extensive system level simulations and the results show significant performance improvements in terms of user throughput outage probability, power efficiency, femtocell coverage, and impact on macro-layer performance as compared to prior art baseline techniques. The paper is concluded by also showing corresponding measurements from live 3G high-speed packet access (HSPA) HNB field-trials, confirming the validity of major simulation results and assumptions.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.