The Communications Group has research interests falling into three broad categories: communication networks, digital communication, and signal processing. Research in communication networks includes areas such as advanced switching concepts, broadband, light wave and local area networks, packet video processing, and queuing theory. The research areas under digital communication include coded modulation, communication algorithms, communication theory, data compression, error control coding, wireless communication, information theory, mobile communication and spread spectrum systems. Signal processing covers areas such as adaptive filtering, detection/estimation, digital signal processing, multimedia systems, image processing and analysis, knowledge-based signal processing, nonlinear filters, parallel algorithms, and statistical signal processing.