Pulse shaping and sir-energy trade-off in chaos-based asynchronous DS-CDMA

被引：0

作者：

Rovatti, R ^{[1
]}

Setti, G ^{[1
]}

Mazzini, G ^{[1
]}

机构：

[1] Univ Bologna, DEIS, I-40136 Bologna, Italy

来源：

2004 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL 4, PROCEEDINGS | 2004年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We develop a general framework to assess the joint effect of pulse shaping and spreading sequence statistics on asynchronous DS-CDMA. which also allows pulse and sequence optimal design. For each pulse we also consider an implementation effort proportional to how much its energy is concentrated into a finite time interval. We are first able to show that, within the class of band-limited pulses, sinc-shaped profile paired with i.i.d sequences are able to minimize Multiple Access Interference (MAI) but maximize implementation effort. We then introduce a family of pulses that generalizes raised cosine profiles and show that, leveraging on the possibility of jointly designing sequence statistics and pulse profile, they help addressing the trade-off between MAI and implementation effort.

引用

页码：613 / 616

页数：4