Design and Performance Evaluation of Lattice Daubechies Wavelet Filter Banks for Less Complex Cognitive Transceivers

Abstract

Wavelet Packet Based Multicarrier Modulation (WPMCM) system uses usually a prototype filter bank multicarrier. The Daubechies-D10 filter bank (D10FB) is the basic framework of multicarrier modulation (MCM) transceiver system. In this paper, Lattice structures of exact Daubechies-D10 wavelet filter are adopted to design a prototybe filter bank realized for a proposed structure of WPMCM transceiver system. Magnitude and phase responses of the exact Daubechies-D10 LPF and the proposed structure are compared. They are nearly the same in the passband with improved roll-off characteristics of the magnitude response of the proposed. Whilefrom the results, it appears that the proposed WPMCM structure possess low speed of operation, less complexity and less power consumption.It is also noticed from SNR comparison, that the performance evaluation of the proposed WPMCM transceiver system is a moderate between other two previously issued structures.

Integrating self-powered disaster recovery networks with environmental monitoring for enhanced disaster preparedness and response

“…To fulfill the networking and energy-saving prerequisites of the proposed DRN, it is viable to deploy the suggested power management and other algorithms on platforms equipped with specific features [19,20] . These features include: 1) fast wake-up time from sleep to active mode (less than 10 clock cycles); 2) clock stop mode; 3) data saving during the clock stop mode; 4) low power consumption (below 15 mA during sleep mode); 5) sufficient networking and processing capabilities (exceeding 18 Mbps) to meet DRN application demands [19] ; 6) support for a wide range of applications and networking protocols in the TCP/IP stack; 7) open-source development and programming environment; 8) reasonable cost.…”

Enhancing and Securing Telemedicine Services in Disaster Recovery Operations with Sustainable Communication Infrastructure and Blockchain Technology

“…Meanwhile, contemporary m-health telemedicine research delves into diverse topics, including Medical Video Modality-Aware (m-aware) systems, which adapt encoding, transmission, and evaluation based on individual video modality properties [5][6][7][8][9]. Multilayer and cross-layer optimization systems aim for optimal performance [10][11][12][13], alongside studies focusing on clinical quality assessment protocols and recommendations [14][15][16][17][18][19][20][21][22][23].…”