Dynamic Spectrum Auction and Load Balancing Algorithm in Heterogeneous Network

Mobile communication plays an important role in the future of communication systems. To meet personalized and intelligent requirements, mobile communication has evolved from single wireless cellular network to heterogeneous mobile communication network, including wireless cellular network, wireless local network, and wireless personal network. In the heterogeneous communication system, to entirely fulfill the spectrum resource complementary advantages of such a heterogeneous wireless network, the spectrum resource trade algorithm has attracted tremendous research efforts. In this paper, the advantages and disadvantages of dynamic spectrum allocation and load balancing are discussed and spectrum auction takes the place of spectrum allocation to maximize the operation revenue. The authors design a joint spectrum auction and load balancing algorithm (SALB) based on heterogeneous network environment to develop a more flexible and efficient spectrum management. The simulation result shows that SALB increases the operation profit significantly. DOI: 10.4018/japuc.2011070102 International Journal of Advanced Pervasive and Ubiquitous Computing, 3(3), 14-23, July-September 2011 15 Copyright © 2011, IGI Global. Copying or distributing in print or electronic forms without written permission of IGI Global is prohibited. With the rapid grows of all kinds of services, e.g., broadcasting, video call, downloading, fixed spectrum allocation scheme is not able to meet the demand for radio spectrum. This is the motivation for a more efficient technique, such as dynamic spectrum allocation (DSA), flexible spectrum management (FSM), spectrum action and spectrum trading. Dynamic spectrum allocation scheme adjusts spectrum allocation according to different network traffic among some areas, thus the network requirements are met and the traffic QoS is improved.