Earticle

초록

영어

Mobility load balancing (MLB) is a significant technology in Long Term Evolution Advanced heterogeneous cellular networks (HCN). To solve high handover performance loss issue and the potential Ping-Pong problem, a novel MLB scheme based on cell priority is proposed. Considering the impact of different user mobile speeds and cell coverage radius of HCN, we define a handover tolerance as the priority of load balancing to reduce the system performance loss caused by user handover. Furthermore, we use the load balancing index to evaluate the load balancing of HCN, then the load allocation mechanism of overlapping cells is deployed to overcome potential Ping-Pong problem. Simulation results show that the proposed MLB scheme has better performance than the original MLB scheme in terms of the system throughput and the number of unsatisfied users. Meanwhile, the handover times are also improved.

목차

Abstract
 1. Introduction
 2. System Model
  2.1. A HCN Scenario
  2.2. Load Balancing Evaluation Metrics
 3. Problem Formulation
 4. Proposed MLB Scheme
  4.1. Handover Tolerance
  4.2. Load Allocation Mechanism of Overlapping Cells
  4.3. Final Threshold of Load Balancing
  4.4. Description of the Proposed MLB
 5. Simulation Result
  5.1. Simulation Parameters
  5.2. Performance Comparison and Analysis
 6. Conclusions
 References

키워드

저자

• Lin Xiao [ Information engineering School, Nanchang University ]
• Fahui Wu [ Information engineering School, Nanchang University ]
• Xiaolan Zhang [ Beijing University of Posts and Telecommunications ]
• Tiankui Zhang [ Beijing University of Posts and Telecommunications ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605