在長程演進技術升級版(Long Term Evolution Advanced; LTE-A)中，異質網路(Heterogeneous networks)用於解決位在訊號品質不佳之建築物內或細胞邊緣的用戶、人口過於密集導致頻寬資源不足的問題，透過布建不同發射功率的小型基地台，以提高建物內訊號強度及頻寬重複使用效率。由於基地台間使用相同頻寬即會互相干擾，因此為避免或減輕干擾情況，基地台會互相協調，此一協調機制又稱協調式多點(Coordinated Multipoint, CoMP)。
本論文目的是在異質網路中利用CoMP機制改善各基地台邊緣用戶的服務品質並提升系統傳輸量，邊緣用戶由於基地台的訊號強度不足以及其他基地台的干擾訊號，使得傳輸效率降低，導致用戶無法達到所需的服務品質，因此分別使用CoMP的動態選擇傳輸點(Dynamic point selection; DPS)降低邊緣用戶接收的干擾，以及聯合傳輸(Joint transmission; JT)提升邊緣用戶接收的訊號強度。
模擬結果顯示，本論文提出的方法與無干擾管理的異質網路比較，能有效提升細胞邊緣用戶接收量93%以及增加整體系統傳輸量59%。當再增加Pico eNB覆蓋範圍，使各個基地台服務用戶數達到一定平衡時，可再進一步增加系統的傳輸量。

In Long Term Evolution Advanced, Heterogeneous networks where low power nodes are overlaid within eNB are used to increase the quality of signal of user equipment which is in the poor signal area and system capacity. By deploying low power nodes in the buildings or hot spots increases the signal strength and frequency reuse. If nodes use same frequency band, Co-channel interference problem will happen. In order to mitigate the Co-channel interference, nodes can coordinate with each other which is called Coordinated Multipoint (CoMP).
In this paper, in order to improve the quality of service of edge users and enhance system throughput in the heterogeneous network, will use the CoMP technology. The transmission efficiency of edge users will be decreased due to the lack of signal strength and the interference from other base stations. Therefore, the DPS of CoMP is used to reduce the interference of edge users and the JT of CoMP is used to enhance the signal strength of edge users.
The simulation results show that the proposed scheme can improve the throughput of edge users 93% and increase the system throughput 59% compared with non-interference management heterogeneous network. When increasing the small eNB coverage, so that the number of base station service users achieve a certain balance, can further increase system throughput.

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