Adaptive Minimum Bit Error Rate Beamforming Assisted Detection for QAM Pre-FFT OFDM Communication Systems

Abstract

A novel adaptive beam forming technique is proposed for broadband wireless communication using quadrature amplitude modulation (QAM) signaling based on least symbol error rate (LSER) criterion, the adaptive antenna array (AAA) is combined with orthogonal frequency division multiplexing (OFDM) which provides better performance to combat intersymbol interference (ISI) and the directional interferences. The proposed design in this paper is for beamforming assisted receiver. The optimum beamformer weight is set in the time domain (pre-FFT) and is obtained based on LSER criteriain a pilot assisted OFDM system in a multipath fading channel. Simulation results show that QAM signaling Based on LSER technique utilizes the antenna array to achieve enhanced performance compared with the standard minimum mean square error MMSE technique because it directly minimizes BER and required shorter training symbols.

Authors and Affiliations

Waleed Abdallah, Mohamad Khdair

Keywords

Related Articles

A Novel Approach for Finding Optimal Overlay Nodes In Routing

In networks to enhance the TCP throughput and postponement Overlay steering procedure is proposed.one of the primary point of interest of this method it doesn't have to change current directing technique. Yet, arrang...

Storage Correctness Verification and Data Regaining In Cloud

Users no longer hold physical possession of the outsourced data makes the data integrity protection in cloud computing a formidable task particularly for users with constrained computing resources. Moreover users sho...

Optimal Price Setting For Video Stream Redistribution in Mobile Networks

Now a days mobile device became a necessity for the people and with this 3G network service consumer can watch he video program by subscribing data plans from the various service providers. Due to heavy use of mobile...

http://www.ijrcct.org/index.php/ojs/article/view/555/pdf

Cloud computing provides a huge data services to the user in an easy and comfortable way over the internet. We presenting a new platform for cloud computing called Data Protection as a Service which is significantly...

SIMULATION AND ANALYSIS OF DSR PROTOCOL IN VANETS

VANET (Vehicular Adhoc Network) is a new concept in the field of wireless networks. The main objective of VANET is to build a powerful network between mobile vehicles so that the vehicles can talk to each other for t...

Download PDF file
  • EP ID EP28191
  • DOI -
  • Views 333
  • Downloads 2

How To Cite

Waleed Abdallah, Mohamad Khdair (2015). Adaptive Minimum Bit Error Rate Beamforming Assisted Detection for QAM Pre-FFT OFDM Communication Systems. International Journal of Research in Computer and Communication Technology, 4(5), -. https://www.europub.co.uk/articles/-A-28191