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On the Flow-Level Delay of a Spatial Multiplexing MIMO Wireless Channel

2010/09/21 by Kashif Mahmood, Amr Rizk, Mahmood, Kashif +3
Computer Science · Engineering · #Advanced MIMO Systems Optimization #Advanced Wireless Network Optimization #Cooperative Communication and Network Coding #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #cs.NI

paper · pdf · doi:10.48550/arxiv.1009.4091

arxiv created 2010/09/21 · openalex publication_date 2010/09/21 · arxiv updated 2010/09/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The MIMO wireless channel offers a rich ground for quality of service analysis. In this work, we present a stochastic network calculus analysis of a MIMO system, operating in spatial multiplexing mode, using moment generating functions (MGF). We quantify the spatial multiplexing gain, achieved through multiple antennas, for flow level quality of service (QoS) performance. Specifically we use Gilbert-Elliot model to describe individual spatial paths between the antenna pairs and model the whole channel by an N-State Markov Chain, where N depends upon the degrees of freedom available in the MIMO system. We derive probabilistic delay bounds for the system and show the impact of increasing the number of antennas on the delay bounds under various conditions, such as channel burstiness, signal strength and fading speed. Further we present results for multi-hop scenarios under statistical independence.

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