A New UWB Scheme Based on Filter Banks
In this paper we propose a new ultra-wideband (UWB) scheme referred to as two-level multicarrier (TLMC) UWB for high speed wireless communications. In TLMC UWB orthogonal frequency division multiplexing (OFDM) is employed as the first level of multicarrier modulation. The output samples of the multiple OFDM modules are then modulated on different carriers utilizing filter banks as the second level of multicarrier modulation. This new scheme possesses several advantages compared to the conventional multiband OFDM (MB-OFDM) UWB scheme. First, the new scheme can dramatically increase the systems throughput as multiple bands can be used simultaneously. Second, the new scheme has a more flexible system configuration where band selecting and switching are all implemented in digital baseband and no carrier frequency switching is needed as in the conventional scheme. All these advantages are derived from the use of the digital filter banks. Theoretical analysis and simulation results show the validity and superiority of the proposed TLMC UWB scheme.
Jian Dang Zaichen Zhang Xiaoyan Wang
National Mobile Communications Research Laboratory Southeast University Nanjing 210096, China
国际会议
南京
英文
1-4
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）