Читать книгу Wireless Connectivity - Petar Popovski - Страница 30

This chapter has dealt with the problem of sharing a single wireless communication channel among multiple communication links. We have used the simplest possible communication model that captures important features of the shared wireless medium, such as broadcast and interference, where the latter is modeled as a collision. We have adopted a packet to be the atomic unit of transmission, meaning that either the whole packet is received correctly or it is completely lost. The objective has been to introduce the main ideas for sharing the channel, such as TDD and TDMA and sketch the elements of a protocol that closely approximates the practical protocols. Where relevant, we have also discussed how the full-duplex capability of the wireless devices can contribute to the design of protocols that are more efficient compared to the case of half-duplex devices.