- タイトル
- Maximum asymptotic stable throughput of opportunistic slotted ALOHA and applications to CDMA networks
- 著者
- G.Mergen, L.Tong
- 出典
- IEEE Trans. Wireless Commun.,
vol.6, no.4, pp.1159-,
2007/04.
- キーワード
- slotted ALOHA, spread ALOHA, DS-CDMA, throughput, asymptotic property, throughput, power capture, Poisson arrival
- 概要
- In this paper we study the maximum asymptotic stable throughput of an opportunistic slotted ALOHA protocol. We provide a characterization of the maximum stable throughput as the number of users in the system goes to infinity. We then apply our findings to CDMA networks with the signal-to-interference-ratio (SIR) threshold model. It is shown that the slotted ALOHA protocol with the power/transmission control rule that equalizes the reception powers achieves 1-O(logN/√N) channel utilization, which is defined as the throughput divided by the optimal throughput N achieved vu scheduling. This implies that the slotted ALOHA is asymptotically optimal in the sense that its channel utilization converges to 1 as the spreading gain goes to infinity.
- 分類
- [SST]直接拡散アロハ：スロット付ALOHA (No.5457)