Proceedings ArticleDOI
Performance study of BFAM 2D-RLS channel estimator for AOFDM based two-way relay
Arun Joy,Vijay Kumar Chakka +1 more
- pp 48-53
TLDR
An adaptive channel estimation scheme for two-way relay with node capability and the effect of channel estimation error on performance of Adaptive OFDM (AOFDM) is analyzed for pedestrian A (pedA) channel.Abstract:
In this paper we introduce an adaptive channel estimation scheme for two-way relay with node capability. The adaptive filter used is called Block Fast Array Multichannel 2D-Recursive Least Square (BFAM 2D-RLS). The modulation used is Orthogonal Frequency Division Multiplexing (OFDM) and channel estimation is done in the frequency domain. The proposed channel estimator considers correlation of channel frequency response in both time and frequency domain. The computational complexity is calculated and convergence performance of the adaptive channel estimator is studied. This paper also introduces an AOFDM scheme for two-way relay systems. The effect of channel estimation error on performance of Adaptive OFDM (AOFDM) is analyzed for pedestrian A (pedA) channel. All computer simulations are performed using MATLAB ®.read more
Citations
More filters
Proceedings ArticleDOI
BFAM 2D-RLS channel estimation for frequency selective environment in two-way relay
Arun Joy,Vijay Kumar Chakka +1 more
TL;DR: An adaptive channel estimation scheme for Amplify and Forward (AF) two-way relay systems with frequency selective and fast varying channels is proposed and the performance of BFAM 2D-RLS filter in estimating fast varying Vehicular-A (Veh-A) channel is analysed.
References
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B. Rankov,Armin Wittneben +1 more
TL;DR: Two new half-duplex relaying protocols are proposed that avoid the pre-log factor one-half in corresponding capacity expressions and it is shown that both protocols recover a significant portion of the half- duplex loss.
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TL;DR: In this article, the authors discuss each block of wireless link in detail including coding, modulation and the advanced topics such as multiplexing, mobile communication, software radio, OFDM and MIMO.
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The multitone channel
TL;DR: The maximum bit rate of multitone QAM (quadrature amplitude modulation) over a general linear channel is found and it is shown that the optimum power division for multitone signals is similar to the water-pouring solution of information theory.