Cell Sectorization and Power Management for FFR-based Network MIMO Systems
碩士 === 國立雲林科技大學 === 資訊工程系碩士班 === 100 === Network multiple-input multiple-output (MIMO) aims to mitigate the inter-cell interference and improve the performance of cell-edge users (CEUs) through a multi-cell cooperative transmission. The study of network MIMO on top of the fractional frequency reuse...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2012
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/67809817552190068454 |
| Summary: | 碩士 === 國立雲林科技大學 === 資訊工程系碩士班 === 100 === Network multiple-input multiple-output (MIMO) aims to mitigate the inter-cell interference and improve the performance of cell-edge users (CEUs) through a multi-cell cooperative transmission. The study of network MIMO on top of the fractional frequency reuse (FFR) cellular system has recently attracted more research attention. However, they were not aware that how cell sectorization is done can cause a great influence on system capacity. Another important topic rarely seen is power management for a multi-cellular coordination scenario, where each BS has to simultaneously serve its intra-cell users and some inter-cell CEUs using a limited amount of power. This paper investigates the cell sectorization and power management on top of FFR-based network MIMO systems. Simulation results show that the proposed power management can improve the signal quality of other cells’ CEUs and meanwhile not degrade the performance of intra-cell users. It is shown that there exists a method of sectorization that causes less interference to cell-center users (CCUs) and offers better signal quality to CEUs in a multi-cell cooperative transmission.
|
|---|