Design of CDMA-Based Transceiver for Ultra Wideband

Abstract

Despite having a history spanning more than three decades, ultra-wideband technology has recently garnered fresh attention due to its perceived promise in enhancing communication capabilities. The fundamental objective of this study is to concentrate on the design of a software radio transceiver for impulse-based ultra-wideband (UWB) communication. This transceiver is intended to possess the potential to transmit raw data at a rate of 100 Mbps, while simultaneously offering the flexibility of a reconfigurable digital receiver. The primary focus of our inquiry will be this particular domain. Direct sequence spread spectrum (DSSS) has emerged as the preferred modulation technique for Wireless Sensor Networks (WSNs) because of its manifold benefits. These include its capacity to effectively counteract interference caused by jammers, its compatibility with code division multiple access (CDMA), and its straightforward deployment process. In addition, MATLAB Simulink is used to implement modulation schemes and conduct observations on their characteristics. In the latter scenario, the evaluation of the bit error rate involves the measurement of various modulation schemes and wireless channels. This is accomplished via the use of approaches that rely on pilot-based matching filter estimates. The uses, as well as limitations of Ultra-Wideband (UWB) technology, are evident in the design of the transceiver. The transceiver is capable of transmitting data at a high rate and has a level of adaptability comparable to that of a research test bed.