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Application Scenario

Application Scenario. Each user is equipped with N t transmit antennas WAR (Wireless Access Router) is equipped with N r receive antennas. System’s Architecture. VBR media Encoder. V(t). Loss-affected MAC queue. VBR media Decoder. Physical layer configuration.

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Application Scenario

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  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

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