在LTE時間頻率架構下隨機多重存取 之D2D通訊

在第四代通訊網路中，裝置間通訊(Device to Device Communication)被提出用來解決基地台負載過大等狀況，並且同時利用因為距離近的特性，而得到相對好的訊號品質增加整體環境的功率與頻率使用效益。有研究提出以區域劃分裝置，因為地域關係(如公司,學校..等等)而聚集起來的使用者中選擇出一個裝置(cluster header)，讓其餘使用者將此裝置當作上網的媒介，對基地台來說可以減少多餘的資源安排(scheduling)，只需要注意該媒介的通道狀況即可。本論文，將針對錯開干擾源與分散式管理這兩個關鍵點進行研究。因此提出以頻率時間跳躍為基礎配合自動回傳(Auto-Repeat-reQuest , ARQ)的機制。由於此機制不需要eNB(eNodeB)的幫助，得已改善新使用者要通訊時得去評估每個通道後，將之結果給予eNB計算後這些步驟造成資源開銷過大等問題以追求行動台的傳輸效益，以及整體系統可容納的吞吐量。

關鍵字

時間頻率跳躍；裝置間通訊； 3GPP LTE-advanced ；干擾避免； ARQ

並列摘要

Device-to-Device (D2D) communication underlaying cellular network was introduced to solve the eNodeB(eNB) overloading in LTE(Long Term Evolution). D2D communication is a kind of peer-to-peer communication. The distance between transmitter and receiver is small. So the D2D pair could have good signal strength in general that could make the whole system have better frequency-efficiency and power-efficiency. There are some research proposed zoning user by the geographical area. Each zone is a group. And each group has a cluster head, which relays all the other user’s messages. The eNB do not have to check the channel status between users except the cluster head. It can reduce the resource which was used for scheduling, In this paper, we focus on two key points, avoidance interference and distribution management. So we introduce a mechanism that combines with time/frequency and ARQ. All users could use the mechanism without eNB’s help. It can not only reduce lots of resources that eNB was used to check all user’s channel status but also reduce the eNB’s loading.

並列關鍵字

ARQ(Auto-Repeat-reQuest) ； Interference management ； Time-Frequency Hopping ； 3GPP LTE-advanced

參考文獻

[1] Y.-J. Choi, K. B. Lee, and S. Bahk “All-IP 4G Network Architecture for Efficient Mobility and Resource Management,” IEEE Wireless Communications, Vol. 14, pp. 42-46, Apr. 2007.

[4] 3GPP TS 36.321: “Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification (Release 12)”

[7] 3GPP TS 36.211: “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release 12)”

[8] 潘泰為, “基於基因演算法下封閉式極微小基地台對資源區塊及傳送功率的自我組態,”國立中正大學, 碩士論文, 2012.

[11] P. Phunchongharn, E. Hossain, and D. I. Kim, “Resource Allocation for Device-to-Device Communications Underlaying LTE-Advanced Networks,” accepted for publication, IEEE Wireless Commun., Sep. 2012.

國際替代計量

在LTE時間頻率架構下隨機多重存取之D2D通訊

未授權

主題瀏覽