Adaptive transmission of QoS-guaranteed traffic over MIMO wireless links

被引：1

作者：

Harsini, Jalil Seifali ^{[1
]}

Lahouti, Farshad ^{[1
]}

机构：

[1] Univ Tehran, WMC Lab, Sch Elect & Comp Engn, Tehran, Iran

来源：

2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13 | 2008年

关键词：

D O I：

10.1109/ICC.2008.61

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we consider the problem of transmission of a bursty data-packet traffic over MIMO space-time diversity fading channels. Aiming at minimizing the packet loss probability due to buffer overflow at the data link layer, we propose a cross-layer analytical framework for transmission policy design which directly satisfies a packet error rate (PER) constraint at the physical layer. Particularly, we present a power and rate adaptation policy for coded M-QAM modulation schemes that are implemented in conjunction with a MIMO diversity system. To enable the transmission policy design, we use a statistical model to characterize the buffer overflow derived from a large deviations result. Numerical results demonstrate that the proposed adaptation policy significantly improves the packet-loss performance for bursty data traffic over MIMO fading channels, when compared to others adaptive solutions.

引用

页码：291 / 295

页数：5