Abstract
With a cross-layer design approach, a novel random access protocol is proposed in this paper, which is based on conventional slotted ALOHA (S-ALOHA) using successive interference cancellation (SIC) technique to separate collided packets and cooperative transmission to exploit the physical layer advantages. And a general theoretic analysis model is presented to obtain its throughput, which is also suitable for analyzing the performance of other protocols (such as S-ALOHA and S-ALOHA with cooperative transmission (C-ALOHA)) and is shown to be right and effective. Numerical results demonstrate that the proposed protocol can improve the maximal throughput by 190% and 132% over a Rayleigh fading channel, respectively, as compared with S-ALOHA and C-ALOHA. And the results show that our protocol can provide an effective random access method with high throughput for wireless transmission.
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Supported by the National Natural Science Foundation of China (Grant No. 60672079), the open research fund of National Mobile Communications Research Laboratory, Southeast University (Grant No. N200814) and the Project of Natural Science Foundation of Jiangsu Province (Grant No. BK2007002)
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Hu, Y., Yang, W. & Cai, Y. Throughput analysis of slotted ALOHA with cooperative transmission using successive interference cancellation. Sci. China Ser. F-Inf. Sci. 52, 2354–2359 (2009). https://doi.org/10.1007/s11432-009-0207-5
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DOI: https://doi.org/10.1007/s11432-009-0207-5