Cross-Layer Resource Allocation Optimization in LTE-Advanced Systems Using Artificial Bee Colony Algorithms

International Journal of Computer Science and Technology | Vol. 13, No. 9, September 2011 | pp. 57–63
DOI: 10.46882/2011/IJCST/000115

Research Article

Title: Cross-Layer Resource Allocation Optimization in LTE-Advanced Systems Using Artificial Bee Colony Algorithms

Names of Authors: Liang Xiao¹, Youssef M. Idris²

Authors’ Affiliations: ¹Department of Information Engineering, Shanghai Jiao Tong University, Shanghai, China; ²Department of Electrical Engineering, Cairo University, Giza, Egypt

Abstract: Next-generation cellular networks like LTE-Advanced must accommodate varied Quality of Service (QoS) specifications across disparate multimedia streams while operating within limited radio frequency bandwidth allocations. Traditional scheduling strategies often treat the physical and medium access control (MAC) layers independently, which degrades overall spectral efficiency. This research introduces a Cross-Layer Resource Allocation Optimization (CLRAO) framework that leverages an adapted Artificial Bee Colony (ABC) algorithm. The proposed approach evaluates channel conditions at the physical layer and integrates them with queue delay limits at the MAC layer. The honeybee foraging search routine is applied to identify optimal sub-carrier and power distributions for concurrent mobile users. Network testbeds demonstrate that the ABC optimization scheme enhances downlink data throughput by 28.4% compared to standard proportional fair algorithms. Fairness indexes improved to 0.91, and delay metrics for real-time video streams stayed well within the 50 ms target threshold. This architecture optimizes spectral utilization for telecom operators managing heterogeneous data distributions.

Keywords: LTE-Advanced, Cross-Layer Optimization, Resource Allocation, Artificial Bee Colony, Quality of Service

Manuscript Timeline: Received June 09, 2011; Revised July 24, 2011; Accepted August 12, 2011; Published September 19, 2011.

Citation: Xiao, L., & Idris, Y. M. (2011). Cross-Layer Resource Allocation Optimization in LTE-Advanced Systems Using Artificial Bee Colony Algorithms. International Journal of Computer Science and Technology, 13(9), 57–63.

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