Signal transmitter

Transmitter Signal Received Signal Receiver Message Destination Noise

A Survey on Wireless Transmitter Localization Using Signal Strength Measurements

Knowledge of deployed transmitters’ (Tx) locations in a wireless network improves many aspects of network management. Operators and building administrators are interested in locating unknown Txs for optimizing new Tx placement, detecting and removing unauthorized Txs, selecting the nearest Tx to offload traffic onto it, and constructing radio maps for indoor and outdoor navigation. This survey ...

Signal Optimization During Radio Links Between a Transmitter and a Receiver Located in Adjacent Material Media with Differing Optical Densities (TECHNICAL NOTE)

Signal optimization is affected during radio links between a transmitter and a receiver located in adjacent material media with differing optical densities. The optimization is carried out via the automated control theory method. The radio signal obtained after the optimization is coordinated with the two media's electrical characteristics simultaneously; and this enables low power and small an...

Transmitter Induced Cyclostationarity For Blind Channel Equalization - Signal Processing, IEEE Transactions on

Fractional sampling has received considerable interest recently as a means of developing blind equalization techniques without resorting to higher order statistics. Instead, cyclostationarity introduced at the receiver by fractional sampling is exploited. In this paper, we show that simpler solutions are possible if cyclostationarity is introduced at the transmitter instead of the receiver. We ...

Secure Digital Signal Transmission by multistep parameter Modulation and Alternative Driving of Transmitter Variables

The idea of secure communication of digital signals via chaos synchronization has been plagued by the possibility of attractor reconstruction by eavesdroppers as pointed out by Pérez and Cerdeira. In this Letter, we wish to present a very simple mechanism by which this problem can be overcome, wherein the signal is transmitted via a multistep parameter modulation combined with alternative drivi...