Cloud transmission for dynamic cognitive radio communications

A novel adaptive Orthogonal Frequency-Division Multiplexing (OFDM) system based on cloud transmission (Cloud Txn) is proposed for dynamic cognitive radio (CR) communication. Cloud transmission is a spectrally-efficient and interference-immune way for broadcasting communication. In light of the Cloud...

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Bibliographic Details
Main Authors: Meisong Zhu, Guanghui Liu, Yanyan Wang, Liaoyuan Zeng, Shuyuan Zhu
Format: Conference Proceeding
Language:English
Subjects:
Bit error rate
Cloud Transmission (Cloud-Txn)
Demodulation
Dynamic cognitive Radio Network
frequency domain
Interference
Kasami sequences
OFDM
Robustness
Signal to noise ratio
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Summary:A novel adaptive Orthogonal Frequency-Division Multiplexing (OFDM) system based on cloud transmission (Cloud Txn) is proposed for dynamic cognitive radio (CR) communication. Cloud transmission is a spectrally-efficient and interference-immune way for broadcasting communication. In light of the Cloud-Txn technology, a secondary link is set up in this paper for supporting fast transmitter-receiver (Tx-Rx) interaction to improve the transmission efficiency of the dynamic CR network. In the secondary link, the CR system parameter information is precoded by Kasami sequences and then superimposed onto OFDM data, i.e., the primary link, in the frequency domain, which requires none of extra spectrum. The performance of the proposed system is theoretically analyzed and verified by computer simulations.
ISSN:2155-5044
2155-5052
DOI:10.1109/BMSB.2015.7177220