Ultra-Wideband Wireless Systems

TLDR

The FCC’s recent allocation of 7,500 MHz of unlicensed spectrum for UWB has spurred interest, but the technology is constrained by low spectral density and a mandatory 500 MHz bandwidth requirement. The paper aims to advance IEEE 802.15.3a for high‑bit‑rate personal area networks by evaluating UWB as a promising solution. It evaluates two multiband UWB schemes—frequency hopping and spectral keying—described in the article. Both schemes satisfy the stringent IEEE 802.15.3a performance requirements.

Abstract

The recent FCC frequency allocation for UWB has generated a lot of interest in UWB technologies. There is 7,500 MHz of spectrum for unlicensed use. The main limitations are provided by the low-power spectral density and by the fact that the transmit signal must occupy at least 500 MHz at whole times. IEEE 802.15.3a is being developed for high-bit-rate PAN applications, and UWB is the most promising technology to support the stringent requirements: 110, 200, and 480 Mb/s. Two UWB multiband systems, frequency hopping and Spectral Keying, have been described in this article. Both systems meet the stringent requirements provided by IEEE 802.15.