- タイトル
- ランダム送信電力制御を適用したDS-CDMA無線パケット通信におけるスループット特性の理論検討
A theoretical study on throughput performance of DS-CDMA packet mobile communication using random transmit power control
- 著者
- 工藤栄亮, 伊藤陽紀, 王智森, 安達文幸
E.Kudoh, H.Ito, Z.Wang, F.Adachi
- 出典
- 信学技報RCS, no.RCS2007-93,
2007/10.
- キーワード
- capture effect, Poisson arrival, DS-CDMA, transmission power control, throughput, spread ALOHA, slotted ALOHA
- 概要
- Recently, we proposed a random transmit power control (TPC) and showed that it can increase the uplink capacity of DS-CDMA packet mobile communications by computer simulation. However, to the best of our knowledge, theoretical analysis of the effect of the random TPC to the throughput on DS-CDMA packet mobile communications has not been done yet. In this paper, we derive the numerical expression of the average packet error rate and system throughput. We also derive the optimal value of the fluctuation probability which is an important parameter of random TPC. The Monte Carlo numerical computation is also done to compare with the theoretically evaluated system throughput of DS-CDMA packet mobile communications using random TPC.
- 分類
- [SST]直接拡散アロハ：送信確率制御 (No.5665)