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Interference Mitigation Techniques for OFDMA-Based Digital Duplexing Systems
- Authors
- Park, Chang-Hwan; Kim, Han-Seong; Cho, Yong-Soo
- Issue Date
- Jul-2012
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- digital duplexing; OFDMA; TDoA; interference mitigation
- Citation
- IEICE TRANSACTIONS ON COMMUNICATIONS, v.E95B, no.7, pp 2477 - 2480
- Pages
- 4
- Journal Title
- IEICE TRANSACTIONS ON COMMUNICATIONS
- Volume
- E95B
- Number
- 7
- Start Page
- 2477
- End Page
- 2480
- ISSN
- 0916-8516
1745-1345
- Abstract
- In OFDMA-based digital duplexing (DD) systems, the effective channel impulse response (CIR) is lengthened due to time difference of arrivals (TDoAs) from adjacent subscriber stations (SSs). In this letter, a time-domain shortening filter (TSF) is proposed to shorten the effective CIR by maximizing signal-to-interference ratio for pulse shortening (SIRPS). A time-domain window (TW) is also proposed to reduce the effect of inter-carrier interference (ICI) due to CFO in OFDMA-based DD systems, by maximizing the signal-to-interference and noise ratio for window (SINRW).
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