Author
Yeh, H. G., Yıldız, Samet
Publication Date
2017-05
Publication Place
-
IEEE
Subject
Intercarrier interference (ICI), Parallel cancelation (PC), Space-time trellis code (STTC)
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1549-7747
Record ID
147dbbe1-e2b3-46e2-ad4f-467f43bbefa7
Date
2017-05
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
Space-time (ST) coding combined with orthogonal frequency-division multiplexing (OFDM) is a robust transmission system. However, ST-OFDM system performance may degrade because of the intercarrier interference (ICI) in frequency-selective fading channels. To mitigate the ICI, a parallel cancelation (PC) algorithm is employed and combined with a 2 × 1 ST code to form an STPC-OFDM system. Further developing the idea of the STPC-OFDM system, we design a modified ST trellis-coded (STTC)-ST-OFDM system and the novel STTC-STPC-OFDM architecture and algorithms to mitigate ICI without expending power or bandwidth or significant complexity. Since this new system integrates ICI PC with channel coding gain and diversity gain, its bit-error-rate performance is better compared with the STPC-OFDM system with a lower error floor in frequencyselective mobile fading channels. Moreover, the Walsh-Hadamard (WH) transformation is further applied to the STTC-STPCOFDM system to form a novel STTC-WH-STPC-OFDM architecture and improve the overall system performance significantly with the same data rate, same power, and same complexity as that of STTC-STPC-OFDM systems.
DOI
10.1109/TCSII.2016.2596043
Cilt
64
