進階長期演進技術下行鏈路中毫微微基地台布建下之部分頻率複用協調機制

隨著無線通訊設備以及通訊服務的普及化，用戶們對於資料傳輸量的需求愈來愈大，傳統所使用的無線通訊系統亟需改善以符合用戶的需求，因而進階長程演進技術被提出來，目的便是為了取代傳統的系統，提高用戶的資料傳輸速率。在進階長程演進技術中，異質性網路佔有一個相當重要的地位，因為在布建一個系統時所花費的成本有相當大的比例用在頻寬上，而異質性網路能使頻寬更有效的利用；但在異質性網路布建的同時，干擾的控制也是必須同時進行的，若是不謹慎處理干擾，異質性網路不但不能使系統效能提升，還可能會造成反效果。對此本研究提出了一個雜訊控制的演算法，並對在此演算法條件下的系統去做分析，找出適當的實現及使用方式，最後並根據不同參數的設定，了解了在何種情況下改使用哪種參數，藉以使系統的效能最大化。

關鍵字

進階長程演進技術；進階干擾協調；頻率複用；異質性網路；毫微微基地台

並列摘要

Nowadays, because mobile devices spread among the people, the demand of communication resource grows rapidly. Traditional macro-nodes cellular network is not a sustainable scheme to handle the traffic load anymore. For this reason, Long Term Evolution Advanced is proposed. A main feature introduced in LTE-Advanced is its support of heterogeneous cellular networks. Using these small cells we could alleviate cellular coverage problems, offload traffic from the cellular network and boost user data rates. However instead of improving the system, inefficient deployment may produce interferences leading to a degradation of system performance. In this thesis, we propose a new algorithm to coordinate interference. And we analysis it getting a suitable set of parameter to maximize system throughput.

並列關鍵字

LTE-A ； eICIC ； FFR ； HetNet ； Femtocell

參考文獻

[2] Lopez-Perez, D.; Guvenc, I.; De la Roche, G.; Kountouris, M.; Quek, T.Q.S.; Jie Zhang, "Enhanced intercell interference coordination challenges in heterogeneous networks,"Wireless Communications, IEEE , vol.18, no.3, pp.22,30, June 2011.

[3] Chun Nie; Pei Liu; Panwar, S., "Interference management using frequency planning in an OFDMA based wireless network," Wireless Communications and Networking Conference (WCNC), 2011 IEEE , vol., no., pp.998,1003, 28-31 March 2011.

[4] Zheng Xie; Walke, B., "Frequency Reuse Techniques for Attaining Both Coverage and High Spectral Efficiency in OFDMA Cellular Systems," Wireless Communications and Networking Conference (WCNC), 2010 IEEE , vol., no., pp.1,6, 18-21 April 2010.

[5] Sawahashi, M.; Kishiyama, Y.; Morimoto, A.; Nishikawa, D.; Tanno, M., "Coordinated multipoint transmission/reception techniques for LTE-advanced [Coordinated and Distributed MIMO]," Wireless Communications, IEEE , vol.17, no.3, pp.26,34, June 2010.

[6] Shaoyi Xu; Jing Han; Tao Chen, "Enhanced Inter-Cell Interference Coordination in Heterogeneous Networks for LTE-Advanced," Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th , vol., no., pp.1,5, 6-9 May 2012.

國際替代計量

進階長期演進技術下行鏈路中毫微微基地台布建下之部分頻率複用協調機制

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