کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
457309 | 695917 | 2014 | 11 صفحه PDF | دانلود رایگان |
The research breakthrough on the hardware implementation of wireless full-duplex transmission has attracted significant interests on building full-duplex wireless networks in recent years. However, due to the asymmetry of real traffic flows, it is challenging to improve the network performance by effectively utilizing the full-duplex capacity. In this paper, we investigate the transmission delay minimization problem of full-duplex WLANs under ad-hoc mode. We first derive a lower bound of the total transmission delay and then propose a relay-based cooperative schedule scheme named CR-Mechanism, via exploiting eligible full-duplex communication opportunities. Our theoretical analysis shows that it achieves such lower bound with a polynomial-time complexity. Furthermore, the closed-form expressions of the expectation of totaly delay, time saving and transmission cost of CR-Mechanism are also derived. The extensive experimental results confirm that CR-Mechanism is an optimal scheduling algorithm with better performance than conventional mechanisms under different traffic models.
Journal: Journal of Network and Computer Applications - Volume 46, November 2014, Pages 407–417