Channel Assignment Problem in Cellular Mobile Network: A Distributed Constraint Satisfaction Approach

2010 ◽  
Author(s):  
Visale Kim ◽  
Wei Liu ◽  
Wenqing Cheng
Keyword(s):  
Constraint Satisfaction ◽  
Channel Assignment ◽  
Assignment Problem ◽  
Mobile Network ◽  
Channel Assignment Problem ◽  
Distributed Constraint Satisfaction ◽  
Cellular Mobile ◽  
Cellular Mobile Network

scholarly journals SOME PROPOSAL FOR IMPROVING CHANNEL ALLOCATION SCHEMES IN CELLULAR MOBILE NETWORK

2009 ◽  
Vol 12 (5) ◽  
pp. 113-121
Author(s):  
Tri Huu Do ◽  
Loi Duy Vu ◽  
Dao Manh Ha
Keyword(s):  
Dynamic Load ◽  
Channel Assignment ◽  
Channel Allocation ◽  
Blocking Probability ◽  
Mobile Network ◽  
Dynamic Load Balancing ◽  
Frequency Allocation ◽  
Mobile Environment ◽  
Cellular Mobile ◽  
Cellular Mobile Network

In this paper, we propose two reformation of channel frequency allocation in Dynamic Load Balancing Strategy for Channel Assignment Using Selective Borrowing in Cellular Mobile Environment (LBSB) [2]. First, a proposal to classify cellular in three difference classes, then we determine the co-channel cell which have to lock channel frequency, the number of co-channel cell have to lock. Exprimentaions have showed the proposal methob has lower blocking probability with LBSB.

On the Use of Particle Swarm Optimization Techniques for Channel Assignments in Cognitive Radio Networks

2012 ◽  
pp. 202-214 ◽  
Author(s):  
Hisham M. Abdelsalam ◽  
Haitham S. Hamza ◽  
Abdoulraham M. Al-Shaar ◽  
Abdelbaset S. Hamza
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Channel Assignment ◽  
Assignment Problem ◽  
Pso Algorithm ◽  
Radio Networks ◽  
Optimization Techniques ◽  
Secondary Users ◽  
Swarm Optimization ◽  
Channel Assignment Problem

Efficient utilization of open spectrum in cognitive radio networks requires appropriate allocation of idle spectrum frequency bands (not used by licensed users) among coexisting cognitive radios (secondary users) while minimizing interference among all users. This problem is referred to as the spectrum allocation or the channel assignment problem in cognitive radio networks, and is shown to be NP-hard. Accordingly, different optimization techniques based on evolutionary algorithms were needed in order to solve the channel assignment problem. This chapter investigates the use of particular swarm optimization (PSO) techniques to solve the channel assignment problem in cognitive radio networks. In particular, the authors study the definitiveness of using the native PSO algorithm and the Improved Binary PSO (IBPSO) algorithm to solve the assignment problem. In addition, the performance of these algorithms is compared to that of a fine-tuned genetic algorithm (GA) for this particular problem. Three utilization functions, namely, Mean-Reward, Max-Min-Reward, and Max-Proportional-Fair, are used to evaluate the effectiveness of three optimization algorithms. Extensive simulation results show that PSO and IBPSO algorithms outperform that fine-tuned GA. More interestingly, the native PSO algorithm outperforms both the GA and the IBPSO algorithms in terms of solution speed and quality.

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