Physical Layer Cognition of FBMC-based Wideband Networking Waveform of SDR

Abstract

With the fast evolution in wireless communication standards and enhancement in cellular applications, the data rate requirement has increased exponentially over the past few decades. The next generation wireless standards, therefore, need to provide ultra-high data rates with minimum latency. Filterbank Multicarrier (FBMC) system is considered one of most promising techniques so far in order to fulfill such high throughput requirements. Along with that the advent of the era Software Defined Radio (SDR) has made the efficient utilization of Radio Frequency spectrum or resource allocation a crucial parameter to be considered. The need of communication depending upon the available channel conditions, the data rate requirement and the Quality of Service(QoS) according to the application at hand varies vastly. Having significantly reduced side lobes and complete elimination of Cyclic Prefix (CP) as utilized in Orthogonal Frequency Division Multiplexing(OFDM), FBMC provides with minimum Multiple Access Interference (MAI) as compared to the previously used waveform of SDR. Therefore, in order to requisite the high throughput demand, the user requirements and channel quality, an adaptive algorithm should be devised aiding the dynamic selection of optimum parameters providing diverse modes of operation for the type of communication needed. The proposed link adaptation algorithm would incorporate the required data rate, the available channel condition and the Quality of Service demand and would dynamically allocate the optimally selected transmitting end parameters with wideband FBMC waveform for the physical layer of SDR.