Results 201 to 210 of about 2,231 (222)

On Interference in Uplink SDMA SC-FDE system

Fifth Annual Conference on Communication Networks and Services Research (CNSR '07), 2007
In this paper, the issue of channel estimation with multiple in-cell co-channel users (ICUs) in the presence of out of cell interferers (OCIs) is addressed. A single carrier frequency domain equalization (SC-FDE), uplink space division multiple access (SDMA) system with iterative block decision feedback equalization (IBDFE), based on the soft decisions
Fayyaz Siddiqui, Florence Danilo-Lemoine, David Falconer   +2 more
openaire   +1 more source

Precoded MIMO-SC-FDE and blind channel estimation

APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems, 2008
In multiple-input multiple-output (MIMO) communications systems, a crucial role is played by channel estimation as the accuracy of estimation will have a substantial effect on the overall system performance. In this paper we consider designing precoding matrices and blind channel estimation algorithms for MIMO single carrier with frequency domain ...
null Ka Chun Kwok, null Zhiping Lin, null Yonghong Zeng   +2 more
openaire   +1 more source

Impact of Imperfect Channel Estimation on SC-FDE

2013 IEEE 77th Vehicular Technology Conference (VTC Spring), 2013
Imperfect channel estimation can have a severe impact on the performance of coherent detection systems. In this paper we study the effect of imperfect channel knowledge in the performance of SC-FDE (Single Carrier with Frequency Domain Equalization).
Nuno Souto, Rui Dinis, Joao Carlos Silva
openaire   +1 more source

A bit-loading algorithm in SC-FDE system

2006 IEEE Radio and Wireless Symposium, 2006
In this paper, we propose a novel concept-sequenced optimal signal subspace, based on which a bit-loading algorithm in SC-FDE system is investigated. Compared with the bit-loading algorithm in OFDM system, the proposed algorithm here has more flexibility and lower complexity. Simulation results show that they have similar performance, so this algorithm
null Jing Yuan, null Yan Du, null Liang Going, null Jianfei Li   +3 more
openaire   +1 more source

Frequency domain channel estimation for SC-FDE in UWB communications

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005
Recently, single carrier block transmission with frequency domain equalization (SC-FDE) has been shown to be a promising candidate for ultra-wideband (UWB) communications. In this paper, we address the channel estimation problem for SC-FDE transmission over UWB channels.
Yue Wang, Xiaodai Dong
openaire   +1 more source

A Blind Fine Synchronization Scheme for SC-FDE Systems

IEEE Transactions on Communications, 2014
This work presents a blind fine synchronization scheme, which estimates and compensates residual carrier-frequency offset (RCFO) and symbol timing offset (STO) , for single-carrier frequency-domain equalization (SC-FDE) systems. Existing fine synchronization schemes for SC-FDE systems rely on time-domain unique words (UW) sequences as reference signals
Ying-Tsung Lin, Sau-Gee Chen
openaire   +1 more source

Cooperative Frequency-Domain Beamforming for Broadband SC-FDE Systems

2011 IEEE Global Telecommunications Conference - GLOBECOM 2011, 2011
In this work, we investigate cooperative frequency-domain beamforming (FD-BF) for single-carrier frequency-domain equalization (SC-FDE) systems. In particular, we propose optimal and suboptimal FD-BF schemes for frequency-domain linear equalization (FD-LE) and an idealized matched filter receiver.
null Peiran Wu, R. Schober
openaire   +1 more source

FPGA implementation of SC-FDE for 60 GHz WPAN

2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC), 2012
The Orthogonal Frequency Division Multiplexing (OFDM) suffers from several drawbacks, including high peak-to-average power ratio, intolerance to power amplifiers nonlinearity and high sensitivity to frequency offsets, which present major issues in the millimetre wave front-ends.
Khaled Sobaihi, Akram Hammoudeh, David Scammell   +2 more
openaire   +1 more source

Multiuser Detection using HOS in UWB SC-FDE System

2006 International Symposium on Intelligent Signal Processing and Communications, 2006
This paper considers an UWB (Ultra-wideband) SC-FDE (single-carrier input-multiple output with frequency domain equalization) system for multiuser. The method exploits higher order statistics (HOS) in the received signals. It is followed by a method which solves permutation problem.
Xiaowei Zhang, Jianming Lu, Takashi Yahagi   +2 more
openaire   +1 more source

Physical layer security enhancement for cooperative SC-FDE systems

2016 8th International Conference on Wireless Communications & Signal Processing (WCSP), 2016
In this paper, a novel joint relay and destination selection scheme is proposed to enhance the secrecy performance in cooperative single carrier frequency domain equalization (SC-FDE) systems with multiple relays and multiple destinations in the present of a group of eavesdroppers.
Pan Yuan, Yunpeng Cheng, Weiwei Yang, Kaihua Wang, Heng Wang   +4 more
openaire   +1 more source