Adaptive Cooperative Communication for Maximizing Reliability and Reward in Ultra-Dense Small Cells LTE-A towards 5G Cellular Networking

• Main Authors: LIOU, SYUAN-HONG, 劉軒宏
• Other Authors: CHANG,BEN-JYE
• Format: Others
• Language: en_US
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/mbeyaq

碩士 === 國立雲林科技大學 === 資訊工程系 === 104 === The Long Term Evolution-Advanced (LTE-A) release 12 specification proposes the small cell enhancement technology that can increase system capacity in the indoor/outdoor hotspots, increase wireless coverage, improve signal quality, reduce the eNB deployment cost, etc. By deploying several small cells in the original LTE-A network, it forms a Heterogeneous Network (HetNets). Although the small cell-based HetNets brings above-mentioned advantages, HetNets suffers from increasing interference yielded by neighbor small cells, yielding more handoffs, etc. Definitely, several critical issues should be addressed effectively, including 1) inter-cell interference among the several neighbor small cells, 2) the issue of cell selection with a multi-cell cooperation according to the state information of various-scale cells and User Equipments (UEs), 3) the multi-cell cooperation process must be studied to achieve the highest profit, 4) improving UE throughput, network reward, and quality of service (QoS), while reducing the eNB deployment cost, etc. This paper thus proposes the Adaptive Cooperative communication for Ultra-Dense LTE-A toward 5G HetNets (namely ACU). ACU consists of three phases: 1) The Link Reliability determination of the cooperative candidate cells Phase (LRP), 2) Adaptive Maximum throughput and QoS-based real-time Priority for UEs (AMP), and 3) the Cost-Reward-based optimal Cooperative Communication (CRCC). Numerical results demonstrate that the proposed ACU outperforms the compared approaches in system capacity, RB loading, net-profit and reward.