## Communications Technology

Every day, vast amounts of information are transmitted around the globe, often instantaneously, using a variety of wired and wireless technologies. The ideas for most of these technologies and the theory behind them are developed within the Communications area in Electrical Engineering. This research involves a lot of mathematics, particularly from the areas of stochastic processes, probability, statistics, real analysis, and combinatorics. Some active research at Cornell in the field of communications includes: information theory, which is concerned with finding out how much information is actually in a given data set and the fundamental limits of data compression and transmission; sensor networks, which usually consist of data-collecting networks with minimal infrastructure (such as a sensors to measure environmental temperatures); wireless networks; and signal and image processing.