OFDM Multiple Antennas Cognitive Radio Relay CDMA Synchronization Channel Estimation Spectrum Sharing Interference Cancellation Full duplex Spectrum Sensing Resource Allocation Neural Networks Stochastic Geometry Equalizer Bi-Directional Feedback Femtocell Energy Harvesting Heterogeneous Networks Device-to-Device (D2D) Cross-link interference Cell Search SINR mismatch problem Ultra-dense small cell networks HetNet Idle cells Spectral efficiency Dynamic TDD interference management NOMA FBMC selection diversity Handoff outage probability mode selection B5G multi-spectral achievable sum rate Grant-free Transmission Filtered OFDM tabu-search bursty traffic model flexible duplex 5G Asynchronous Transmission Preamble Deep learning Shortened TTI automatic repeat request (ARQ) Two-way communications transmission capacity (TC) in-band full-duplex system self-interference cancellation Complexity Ultra-dense small cell sensing duration Correlated MIMO Cognitive relay networks Heterogeneous channel estimation capability Bi-directional full-duplex full-duplex cellular full-duplex relay Simultaneous Sensing and Transmission UWB OQAM Windowing Vehicle-to-vehicle communication prototype filter pilot signal LTE-based V2V link reliability resource size control interference to noise ratio eigen decomposition TS-W-OFDM C-V2V massive connectivity Reliability Vehicle-to-Vehicle full-spreading NOMA Resource management Cooperative systems Coexistence scenarios mixed numerology 6G Cell-free Coexisting network Multiple access Railway CP-OFDM MLP Edge computing Full-duplex Mobility non-orthogonal multiple access HST interference mitigation Computation offloading TDD configuration Singular Vale Decomposition
Status : Published 
Date : 2010-02 
Title : LLR-based Symbol Selective Transmission with a Near-optimal Threshold to Minimize BEP for Demodulation-forward Relay Systems 
Authors : Taehoon Kwon, Sungmook Lim, Woohyun Seo, and Daesik Hong 
Journal : IEEE Transactions on Wireless Communications 
Abstract : Error propagation in the source-relay link limits the performance of demodulation-forward (MF) relay systems. In order to solve this problem and efficiently exploit the relay, we propose log likelihood ratio (LLR)-based symbol selective transmission with a near-optimum threshold to minimize the bit error probability (BEP). In the proposed scheme, the source information is forwarded by the relay only if it is likely to be detected correctly, as determined by a comparison of the LLR with the near-optimum threshold. To derive the near-optimum threshold, the BEP of the proposed scheme is analyzed in the case of binary phase shift keying (BPSK) signals. Simulation results confirm the accuracy of the analysis and prove that the proposed scheme efficiently mitigates error propagation. 
URL : http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5403532 
Download : http://mirinae.yonsei.ac.kr/?module=file...a622ad961d 
Taehoon Kwon; Sungmook Lim; Woohyun Seo; Daesik Hong; , "LLR-based symbol selective transmission with a near-optimal threshold to minimize BEP for demodulation-forward relay systems," Wireless Communications, IEEE Transactions on , vol.9, no.2, pp.540-545, February 2010
doi: 10.1109/TWC.2010.02.090248
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5403532&isnumber=5403520
List of Articles
No.
Statussort Date
11 [IEEE Trans. Wireless Commun.] Jonghyun Bang, Jemin Lee, Member, Seokjung Kim, and Daesik Hong, "An Efficient Relay Selection Strategy for Random Cognitive Relay Networks" IEEE Trans. Wireless Commun., Nov. 2014 file Published  2014-11 
10 [IEEE Trans. Wireless Commun.] Seokjung Kim, Sungsoo Park, and Daesik Hong, "Performance Analysis of Opportunistic Relaying Scheme with Outdated Channel Information," IEEE Trans. on Wireless Comm., Feb. 2013 file Published  2013-02 
9 [IEEE Trans. Wireless Commun.] Hyungjong Kim, Sungmook Lim, Hano Wang and Daesik Hong, "Optimal Power Allocation and Outage Analysis for Cognitive Full Duplex Relay Systems", IEEE Trans. Wireless Comm., Oct. 2012 file Published  2012-10 
8 [IEEE Trans. Wireless Commun.] Sanguk Sagong, Jemin Lee, and Daesik Hong, "Capacity of Reactive DF Scheme in Cognitive Relay Networks" IEEE Trans. Wireless Comm., Oct 2011 file Published  2011-10 
7 [IEEE Trans. Wireless Commun.] Jemin Lee, Hano Wang, Jeffrey G. Andrews, and Daesik Hong, "Outage Probability of Cognitive Relay Networks with Interference Constraints," IEEE Trans. Wireless Commun., Feb. 2011 file Published  2011-02 
» [IEEE Trans. Wireless Commun.] Taehoon Kwon, Sungmook Lim, Woohyun Seo and Daesik Hong, "LLR-based Symbol Selective Transmission with a Near-optimal Threshold to Minimize BEP for Demodulation-forward Relay Systems", IEEE Trans. Wireless Commun., Feb 2010 file Published  2010-02 
5 [IEEE Trans. Wireless Commun.] Hyungsik Ju, Eunsung Oh, Daesik Hong 'Improving Efficiency of Resource Usage in Two-Hop Full Duplex Relay Systems based on Resource Sharing and Interference Cancellation' IEEE Trans. Wireless Comm., Aug 2009 file Published  2009-08 
4 [IEEE Trans. Wireless Commun.] Jaemin Han, Eunsung Oh, Hyungsik Ju, Daesik Hong, "Asymmetric Diversity Modulation Scheme in Wireless Fading Relay Channels", IEEE Trans. Wireless. Comm., Jul 2009 file Published  2009-07 
3 [IEEE Trans. Wireless Commun.] Sungeun Lee, Myeongsu Han, Daesik Hong, 'Average SNR and Ergodic Capacity Analysis for Opportunistic DF Relaying with Outage over Rayleigh Fading Channels' IEEE Trans. Wireless Comm., Jun 2009 file Published  2009-06 
2 [IEEE Trans. Wireless Commun.] Jemin Lee, Hano Wang and Daesik Hong, "QoS-guaranteed Transmission Mode Selection for Efficient Resource Utilization in Multi-hop Cellular Networks", IEEE Trans. Wireless Comm., Oct 2008 file Published  2008-10 
1 [IEEE Trans. Wireless Commun.] Hyunkee Min, Sungeun Lee, Kyungchul Kwak and Daesik Hong, "Effect of Multiple Antennas at the Source on Outage Probability for Amplify-and-Forward Relaying Systems", IEEE Trans. Wireless Comm., Feb 2009 file Published  2009-02