Frequency-hopped network diversity multiple access for semi-ad-hoc wireless networks

Goran Dimić, Nicholas D. Sidiropoulos

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


We consider a wireless data network setup that provides scalability and robustness to node failures, while achieving high throughput and low mean delay. A semi-ad-hoc Frequency-Hopped (FH) Network Diversity Multiple Access (NDMA) scheme is proposed. In this scheme, nodes are dynamically organized into clusters, where each cluster operates under NDMA random access protocol with FH on a per packet slot basis using a cell-specific FH pattern. In a moderately loaded system, collisions between packets from different clusters are not negligible. In order to guard against such collisions, we propose NDMA with a fixed re-transmission margin of M slots. For this system, we derive a sufficient condition for stability using a deterministic fluid arrivals model. We also analyze steady-state, and obtain useful formulas for approximating mean packet delay.

Original languageEnglish (US)
Pages (from-to)205-208
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
StatePublished - 2003
Event2003 IEEE International Conference on Accoustics, Speech, and Signal Processing - Hong Kong, Hong Kong
Duration: Apr 6 2003Apr 10 2003


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