TITLE:
A Circulated Block Transmission Scheme for FTN Signaling
AUTHORS:
Mingqi Li, Shihao Lai, Yaqiu Peng
KEYWORDS:
FTN, ISI, Frequency-Domain Equalization, Post-Processing SNR
JOURNAL NAME:
International Journal of Communications, Network and System Sciences,
Vol.10 No.8B,
August
14,
2017
ABSTRACT: Fast-Than-Nyquist (FTN) transmission is a promising method to improve the spectrum efficiency for future wireless communication systems. However, this benefit of FTN is at the price of inducing the inter-symbol interference (ISI), which increases the complexity of the receiver. In this paper, a circulated block transmission scheme for FTN signaling, i.e. CB-FTN system is proposed. The detail implementation structure of CB-FTN transceiver is presented, in which the ISI caused by FTN transmission is canceled by the frequency-domain equalization (FDE), and the inter-block interference (IBI) caused by the multi-path channel is overcome by the cyclic-prefix. The postprocessing signal to noise ratio (pSNR) is analyzed for the CB-FTN receiver with zero-forcing FDE in AWGN channel, which is verified by the simulation results. Moreover, the BER performances and computational complexity of CB-FTN system are compared with the existed scheme.