In this chapter we proposed a novel wavelet packet based scheme to reduce the effect of co-existing wideband interference in UWB-IR communication. The emphasis was on the development of maximally frequency selective filter banks derived from a modified Remez exchange algorithm. For the IEEE 802.11a interference, simulation studies showed that the proposed scheme yielded significant BER performance improvements. Further, the performance of the system was found to be determined by the length, transition band, and regularity order of the filter banks.

Inspec keywords: signal denoising; wavelet transforms; error statistics; ultra wideband communication; wireless LAN; channel bank filters

Other keywords: wideband interference; regularity order; wideband IEEE 802.11 source; BER performance improvements; transition band; modified Remez exchange algorithm; maximal frequency selective filter banks; ultra wideband impulse radio communication; frequency selective wavelet packets; UWB-IR interference mitigation

Subjects: Other topics in statistics; Radio links and equipment; Filtering methods in signal processing; Integral transforms