1 / 8

Application Scenario

This document explores the architecture of MIMO MAC systems, focusing on the trade-offs between diversity and multiplexing. It discusses the implications of using multiple transmit and receive antennas, the performance metrics such as average frame error rates, and service rates under various conditions. The analysis also highlights the importance of dynamic resource allocations based on the class of service, along with optimization methods for achieving optimal scheduling. Key references include the work by Tse et al. on the diversity-multiplexing tradeoff in multiple-access channels.

tanner
Download Presentation

Application Scenario

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Application Scenario • EachuserisequippedwithNttransmitantennas • WAR (Wireless Access Router) isequippedwithNrreceiveantennas

  2. System’s Architecture VBR media Encoder V(t) Loss-affected MAC queue VBR media Decoder

  3. Physicallayerconfiguration D.N.Tse, P.Viswanath, L.Zheng,’’ Diversity-Multiplexing Tradeoff in Multiple-Access Channels’’, IEEE Tr.onInform. Theory, vol.50, no.9, pp.1859, 2004.

  4. Diversity-vs-Multiplexing-vs-SDMAtradeoff • The best diversity-multiplexing curve attainableby the MIMO MAC channel i-thaverage Frame Error Rate at the MAC layer Piecewiselinear curve

  5. MIMO MAC Packet loss MIMO MAC service rate

  6. Multiple UserSystems MISO System MIMO System Joint optimization Dynamic resource allocations Backbone Access Point Client Device

  7. MISO Systems - Multiplexer Queue weights depending on the Class of Service of the different input streams . . . . Weights . . a1 S1 Wireless channel a2 Optimization problem S2 s(t) aM SM 7

  8. The radiatedenergies and the system state partitioningfor the jointlyoptimalscheduler 8

More Related