Simulation of direct-sequence ultra-wideband using simulink

Abstract

Owing to the increasing use of Wireless Personal Area Networks (WPANs) in which users can connect devices such as mobile phones, printers and computers without using physical cables over short-range wireless links, the need for improved channel capacity has become an issue. Directsequence ultra-wideband (UWB) is an impulse-based scheme that provides a direct means of increasing transmission bandwidth, thereby enabling data to be transmitted at very high bit rates. This paper describes the simulation of a single-user end-to-end direct-sequence UWB link in an Additive White Gaussian Noise (AWGN) channel using SIMULINK. The simulated bit error-rate characteristics indicate that reliable high bit-rate communication can be achieved in the presence of AWGN using direct-sequence UWB.

Keywords: Direct-sequence, Ultra-wideband, Narrowband, bandwidth, simulation, wireless