Over the air communications, such as text messages, satellite radio, walkie talkies and WiFi need to deal with the unpredictable effects of noise in the channel. Coding theory attempts to make noisy channels more reliable by bringing the noise...
Engineers face the reality of imperfect and noisy channels when designing digital communication systems (DCS). The engineers must account for signal degradation to ensure that a receiver receives the message that the transmitter intended....
Satellite system engineers consider the narrow beams (which lend themselves to frequency reuse) and high data rates of Ka band channels attractive for communication systems [Khan 2]. As a result, the satellite community witnessed a great increase...
This blog post summarizes the first three chapters of Bernard Sklar's Digital Communication - Fundamentals and Applications textbook. Signals A Digital Communication System (DCS) transmitter (XMT) sends a waveform selected from a finite set of...
I wrote this white paper a while back. This paper discusses the evolution from hierarchical to Flat IP Architectures for mobile networks. This information may be of interest to mobile network architects, especially in light of the emergence of...
Freshlex LLC (should) architect the reliable multicast infrastructure for the putative John Carmack biopic, which will hit the Internet in December of 2018. The first blog post discusses two of the enabling technologies, FCAST and ALC. The second...
Freshlex LLC (should) architect the reliable multicast infrastructure for the putative John Carmack biopic, which will hit the Internet in December of 2018. The first blog post discusses two of the enabling technologies, FCAST and ALC. The second...
Freshlex LLC (should) architect the reliable multicast infrastructure for the putative John Carmack biopic, which will hit the internet in December of 2018. The first blog post discusses two of the enabling technologies, FCAST and ALC. This blog...
Reliable multicast?!? How on earth can you guarantee transport using a unidirectional, asynchronous delivery method? Could you scale your solution to support ten million downstream users, each with a different capacity, varying from dial up to...