English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

For wireless systems in which randomly arriving devices attempt to transmit afixed payload to a central receiver, we develop a framework to characterize thesystem throughput as a function of arrival rate and per-user data rate. Theframework considers both coordinated transmission (where devices are scheduled)and uncoordinated transmission (where devices communicate on a random accesschannel and a provision is made for retransmissions). Our main contribution isa novel characterization of the optimal throughput for the case ofuncoordinated transmission and a strategy for achieving this throughput thatrelies on overlapping transmissions and joint decoding. Simulations for anoise-limited cellular network show that the optimal strategy provides a factorof four improvement in throughput compared to slotted aloha. We apply ourframework to evaluate more general system-level designs that account foroverhead signaling. We demonstrate that, for small payload sizes relevant formachine-to-machine (M2M) communications (200 bits or less), a one-stagestrategy, where identity and data are transmitted optimally over the randomaccess channel, can support at least twice the number of devices compared to aconventional strategy, where identity is established over an initialrandom-access stage and data transmission is scheduled.

Fundamentals of Throughput Maximization with Random Arrivals for M2M Communications