| In this paper, we propose a cross-layer distributed power control and scheduling protocol for delay-constrained applications over mobile CDMA-based ad hoc wireless networks. Herein, we propose a novel scheme where power control is employed to combat delay occurring on multi-hop wireless ad hoc networks via cross-layer information exchange. Based on that, a distributed power control and scheduling protocol is proposed to control the incurred delay, as well as the multiple access interference (MAI). Unlike many previous works on power control and scheduling, we also investigate the impacts of Doppler spread and noisy channel estimates upon the system performance, and provide a robust system which employs a combination of power control and coding/interleaving to combat the effects of Doppler spread by exploiting the time diversity when the Doppler spread gets large. Hence, our proposed approach can function appropriately over a wide range of channel conditions. |
| Qi Qu received the B.S.E degree from the Institute of Communications and Information Engineering, University of Electronic Science and Technology of China, Chengdu, China, in June, 2002 and the M.S. degree (with honors) from Electrical and Computer Engineering, University of Miami, Coral Gables, FL, USA, in May, 2004. He is currently working toward the Ph.D degree at the Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA, USA.
His research interests are in the areas of wireless communications, wideband CDMA systems, wireless ad-hoc networks and multimedia communication systems and networks.
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