Transmission latency and reliability trade-off in path-time coded cognitive radio ad hoc networks

Yi Chi Chen, I. Wei Lai, Kwang Cheng Chen, Wen Tsuen Chen, Chia-Han Lee

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

Cognitive radio ad hoc network (CRAHN) is considered as a key technology to enhance the spectrum efficiency for diverse applications. However, due to the opportunistic links, the intrinsic randomness of the CRAHN makes the traditional precise control of the end-to-end transmission unscalable and generally infeasible. The recently-proposed virtual multiple-input multiple-output (MIMO) framework exploits the multipath routing to create the diversity at the network layer. With only local information and no feedback control channel, the path-time code (PTC) of the virtual MIMO system is able to efficiently provide the error resilient end-to-end transmission. In particular, while the transmission latency should be minimized, more attempts for accessing the opportunistic links can be made if a larger latency is allowed, which improves the error rate performance of the end-to-end transmission. By theoretically analyzing the error rate performance and erasure statistics, we propose a design guideline to determine the waiting period as the limit of the transmission latency. This designed waiting period not only preserves the diversity gained by the PTC but also provides a low transmission latency, resulting in a good balance of the reliability-latency trade-off of the end-to-end PTC transmission in CRAHNs.

原文English
主出版物標題2014 IEEE Global Communications Conference, GLOBECOM 2014
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1084-1089
頁數6
ISBN(電子)9781479935116
DOIs
出版狀態Published - 9 2月 2014
事件2014 IEEE Global Communications Conference, GLOBECOM 2014 - Austin, United States
持續時間: 8 12月 201412 12月 2014

出版系列

名字2014 IEEE Global Communications Conference, GLOBECOM 2014

Conference

Conference2014 IEEE Global Communications Conference, GLOBECOM 2014
國家/地區United States
城市Austin
期間8/12/1412/12/14

指紋

深入研究「Transmission latency and reliability trade-off in path-time coded cognitive radio ad hoc networks」主題。共同形成了獨特的指紋。

引用此