A Novel Approach for Channel Estimation for MIMO-OFDM Systems Using PDP Technique
Journal Title: International Journal of Research in Computer and Communication Technology - Year 2013, Vol 2, Issue 8
Abstract
Multiple Input – Multiple Output Orthogonal frequency Division Multiplexing (MIMO-OFDM) is considered as eminent technology in the world of wireless communication such as 3rd Generation technology as well as WiMAX. The successful implementation of LMMSE channel estimator in MIMO-OFDM is based on the reduction in the distortions caused by various factors such as by null subcarriers and the residual noise caused by the insufficient number of samples for power delay profile (PDP) estimation. Hence, we proposed a PDP estimation technique for linear minimum mean square error (LMMSE) channel estimator in MIMO-OFDM system. The proposed technique effectively mitigates the distortions for accurate PDP estimation and the distortion caused by null subcarriers. In addition, this technique also reduces the correlation mismatch in the frequency domain. The output of LMMSE channel by using the proposed PDP estimate approaches that of Wiener filtering and Kalman Filtering as results of the mitigation of distortion effects.
Authors and Affiliations
Md Tajuddin, A Mallikarjuna Prasad
Keywords
Related Articles
- EP ID EP27614
- DOI -
- Views 326
- Downloads 4
Para-Scheduling Algorithm for Architectural Framework of Virtual Computing Lab
Our main concern in private cloud computing is to provide sufficient computing resources on demand, however in current architectures like eucalyptus, cluster controller is the sole provider of virtual machines to the...
Performance Analysis of AODV and DSR Routing Protocols in MANET’S
Mobile ad-hoc networks (MANETS) are formed by a collection of mobile nodes that have the ability to form a communication network without the help of any fixed infrastructure. Because of the nature of these networks,...
DISCOVERING OPTIMUM FORWARDER LIST IN MULTICAST WIRELESS SENSOR NETWORK
Routing Protocol design for wireless networks is problem area that has two essential requirements. Minimize energy cost and maximize network throughput. Wireless Sensor Network consists of sensor devices which senso...
Image Compression Technique Using Different Wavelet Function
With the development of Digital image processing technology there are several applications. One of the applications is an image compression. The paper assigned a comparative study has been done using different wavele...
Performance of Different Bow Tie Antennas In Fresh Water
In this paper, the performance of a different microstrip fed bow tie antennas in water is studied. The antennas are designed and simulated using the simulator tool HFSS (High Frequency Structure Simulator). The antenna...