Abstract
In the progress of transmission systems that uses t he diversity in various domains, the execution of c ompetent baseband receivers categorized by affordable computational load is an essential thing. This would be a n imperative point in the future expansion of 4G syst ems in which the space, time and frequency diversit y will be merged together to enhance the system throughput. Here, we develop a channel estimation technique f or MC-CDMA system for the minimization of BER and the maximization of throughput. The maximization of throughput is an essential thing for the successful reception of signal. At the receiver side, the ori ginal data is obtained based on the channel estimation algorithm and the inverse process of the transmitter side is performed in the receiver side. The major contribution of our work is to estimate the channel information in an adaptive way. We estimate the channel using the cuckoo search algorithm based on the best solution we obtain fr om the cuckoo search algorithm. After estimating the chann el, we calculate the Bit Error Rate (BER) performan ce and throughput based on the acknowledgement send by the receiver. Experimental results show that our techn ique is better in terms of BER and throughput compared t o the existing technique.
Highlights
As the wireless internet service has been considered as one of the primary services in the future generation wireless systems, competent exploitation of radio resources on downlink is becoming more essential (Klemm et al, 2009)
The multiplexing CDMA (Sayadi et al, 2009; Aliesawi et al, 2011) designs are classified in to two: first one is that the frequency domain spreading in MC-CDMA integrates the multicarrier transmission with the frequency domain spreading i.e., the original data stream from the user is with the user specific spreading code in the frequency domain but not in the time domain
In this study we have proposed a technique to estimate the channel for MC-CDMA system for minimization of Bit Error Rate (BER) and the maximization of throughput
Summary
We exploited as the transmit diversity appropriate communication (Sinha and Borty, 2010) and approach for MC-CDMA system (Vakil and Aghaeinia, multi-rate Code-Division Multiple Access (CDMA) packet systems, radio resources can be consigned in a. Some influential multi- and that of orthogonal multicarrier DS-CDMA spreads the access designs and error control approaches are essential serial to parallel transformed data streams by means of (Vakil and Aghaeinia, 2009) for successful specified spreading code in the time domain. We propose a channel estimation technique for MC-CDMA system for the minimization of bit error rate and the maximization of throughput. This paper is organized as follows: The second section shows the system model of MC-CDMA and the third section explains our adaptive way of estimating channel and the fourth section shows the performance of our proposed technique and the fifth section discusses our technique compared with the existing technique and the sixth section concludes our technique
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