Frameless ALOHA Protocol for Wireless Networks

Cedomir Stefanovic, Petar Popovski, Dejan Vukobratovic

Research output: Contribution to journalJournal articleResearchpeer-review

91 Citations (Scopus)


We propose a novel distributed random access scheme for wireless networks based on slotted ALOHA, motivated by the analogies between successive interference cancellation and iterative belief-propagation decoding on erasure channels. The proposed scheme assumes that each user independently accesses the wireless link in each slot with a predefined probability, resulting in a distribution of user transmissions over slots. The operation bears analogy with rateless codes, both in terms of probability distributions as well as to the fact that the ALOHA frame becomes fluid and adapted to the current contention process. Our aim is to optimize the slot access probability in order to achieve rateless-like distributions, focusing both on the maximization of the resolution probability of user transmissions and the throughput of the scheme.
Original languageEnglish
JournalI E E E Communications Letters
Issue number12
Pages (from-to)2087 - 2090
Number of pages4
Publication statusPublished - 2012
EventIEEE Globecom Communications Conference - Disneyland Hotel, Anaheim, Anaheim, California, United States
Duration: 3 Dec 20127 Dec 2012


ConferenceIEEE Globecom Communications Conference
LocationDisneyland Hotel, Anaheim
Country/TerritoryUnited States
CityAnaheim, California


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