title   
  

Optimal scheduling and resource allocation using hierarchical modulation in wireless networks

Karaca, Mehmet and Erçetin, Özgür (2011) Optimal scheduling and resource allocation using hierarchical modulation in wireless networks. In: 2011 Eighth International Conference on Wireless and Optical Communications Networks (WOCN), Paris, France

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1109/WOCN.2011.5872948

Abstract

We investigate the network utility maximization (NUM) problem when layered modulation is used at the physical layer of a downlink wireless system. The key idea is to transmit to more than one users with favorable and unfavorable channel qualities at the same time by employing hierarchical constellations. We demonstrate that average throughput of users with unfavorable channel conditions are significantly improved without any penalty on the overall system utility. We employ stochastic network optimization tools to derive and prove the stability and optimality of a cross-layer algorithm that performs joint flow control, scheduling and transmission power control.

Item Type:Papers in Conference Proceedings
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
ID Code:17672
Deposited By:Özgür Erçetin
Deposited On:05 Dec 2011 15:12
Last Modified:05 Dec 2011 15:12

Repository Staff Only: item control page