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A Blind Phase Compensation Method for Direct Spectrum Division Transmission

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3 Author(s)
Abe, J. ; NTT Access Network Service Syst. Labs., Nippon Telegraph & Telephone Corp., Yokosuka, Japan ; Nakahira, K. ; Kobayashi, K.

This paper introduces Direct Spectrum Division Transmission combined with a novel phase compensation method that offers improve frequency utilization efficiency. The proposed method divides a single-carrier modulated signal into multiple sub-spectra in the transmitter (Tx) side and assigns each sub-spectrum to an unused frequency slot. It combines them in the receiver (RX) side without phase distortion. To prevent phase discontinuity after spectrum combination due to propagation delay, we propose a novel phase compensator that estimates the phase difference between sub-spectra to compensate Rx sub-spectra; no specific frame pattern is required. A simulation shows that the degradation in required C/N is negligible. The results confirm that the proposed method realizes highly accurate phase compensation.

Published in:

Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE

Date of Conference:

5-9 Dec. 2011

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