有中繼站的分散式Hybrid MIMO Transceiver且考慮訊息交換錯誤

Relay-Assisted Distributed Hybrid MIMO Transceiver with Information Exchange Errors

涂世雄(Shih-Hsiung Tu)

指導教授 ： 曾恕銘

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2011年)

https://doi.org/10.6841/NTUT.2011.00703

摘要

之前的研究針對無中繼站，兩個使用者的合作式通訊系統架構提出一種分散式空時編碼(DSTBC)，並考慮資料互換的錯誤情況。本論文提出一種分散式混合MIMO傳送接收的系統架構(HMT)，並在三個使用者的合作式系統中考慮資料互換錯誤的情況。之前的研究也針對有中繼站的系統提出一個未使用通道編碼，使用解調傳送型的中繼站並考慮中繼站解調有錯的情況所產生的兩個使用者的合作式通訊系統。本論文也提出一種有中繼站的分散式HMT架構，並且在三個使用者的合作式通訊系統中考慮資料互換錯誤的情況。跟以往不同的是，本文提出的是三傳二收的HMT並且分別在來源端到中繼站、中繼站到目的端、來源端到目的端皆有通道選擇的機制，但先前的架構僅有二傳二收並且未使用通道編碼。模擬結果顯示，無論是有中繼站或是無中繼站的架構，在同樣是4/bits/sec/Hz的傳輸速率底下，本論文提出架構的錯誤率都比先前的架構還要低。

關鍵字

混和型多傳多收傳輸架構 ； 合作式通訊系統 ； 分散式空間時空區段碼 ； 解調傳輸型中繼站

並列摘要

For non-relaying scheme, the previous work proposed a distributed space-time block code (DTBC) considering information exchange errors in two-user cooperative systems. We propose a distributed Hybrid MIMO Transceiver scheme (HMT) considering information exchange errors in three-user cooperative systems. For relaying scheme, the previous work also proposed an un-coded demodulated and forward relay and considering demodulation errors in the relay in two-user cooperative systems. We propose the relay-assisted distributed HMT scheme considering information exchange errors in 3-user cooperative systems, the differences are that our scheme has 3x2 HMT with transmit antenna selection in source-to-relay, source-to-destination, and relay-to-destination links, but the previous scheme has the 2x2 un-coded scheme in these three links. For both non-relaying and relaying scenarios, the simulation results show the proposed schemes have lower bit error rate (BER) than the previous schemes at the same 4 bits/sec/Hz transmission rate.

並列關鍵字

Hybrid STBC ； cooperative systems ； distributed coding ； demodulation and forward relay

參考文獻

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