Space-time spreading based DS-UWB link scheme for wireless home entertainment networks

Recent developments in both the consumer electronics (CE) and PC industries make ultra-wideband (UWB) an almost perfect wireless solution to drive and benefit from the ongoing convergence of home entertainment and computing network. In order to meet increasing consumer demand for low cost, low power, flexible, and reliable wireless home entertainment networks, we present a high-speed DS-UWB link scheme employing space-time spreading (STS) technique combined with adaptive detection. Maximal path diversity at the receiver is achieved via our approach. In doing so, no extra spreading codes, transmit power, nor channel estimation is required and only minimal extra hardware complexity of the link. Both our analysis and simulation results show that, compared with the conventional single-antenna DS-UWB link, the proposed STS based DS-UWB link scheme is capable of obtaining at least 2.5 dB improvement in terms of the SNR, and therefore can be considered as a promising candidate to support multimedia wireless connections of good quality