DocumentCode :
651001
Title :
A novel load balancing scheme in LTE and WiFi coexisted network for OFDMA system
Author :
Zunli Yang ; Qinghai Yang ; Fenglin Fu ; Kyung Sup Kwak
Author_Institution :
Sch. of Telecomm. Eng., Xidian Univ., Xi´an, China
fYear :
2013
fDate :
24-26 Oct. 2013
Firstpage :
1
Lastpage :
5
Abstract :
In this paper, a novel load balancing scheme is conceived for the OFDMA LTE cellular and WiFi coexisted network. The mobile index is introduced to measure the mobility of user equipments (UE) in the coverage of WiFi hotspots and the access index is calculated by considering both mobile index and the received power from WiFi access points (AP) to determine the UE´s access pattern. The load balance entity manages the UE load in coexistent network dynamically. A load balancing algorithm is developed to balance the network load measured by the ratio of the average WiFi load to the LTE cell load as well as the Jain´s fairness index. Simulation results demonstrate the proposed algorithm can acquire an improvement in network load balancing, thus enhancing the overall system throughput.
Keywords :
Long Term Evolution; OFDM modulation; cellular radio; frequency division multiple access; resource allocation; wireless LAN; Jain´s fairness index; LTE; Long Term Evolution; OFDMA system; WiFi access points; WiFi hotspots; cellular network; load balancing algorithm; load balancing scheme; mobile index; user equipments mobility; LTE; Load balancing; WiFi; handover; mobility; throughput;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications & Signal Processing (WCSP), 2013 International Conference on
Conference_Location :
Hangzhou
Type :
conf
DOI :
10.1109/WCSP.2013.6677253
Filename :
6677253
Link To Document :
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