Low Complexity Bit Loading Algorithm with Power-constraint for OFDM-based Wireless Sensor Communication 


Vol. 34,  No. 12, pp. 1483-1490, Dec.  2009


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  Abstract

Orthogonal frequency division multiplexing (OFDM) has been investigated as an enabling technology for future wireless communications such as ad hoc, mesh and sensor networks. However, prior works on bit-loading lack consideration of the constraints on energy and computing facility in sensor networks. In this paper, we suggest an adaptive bit allocation algorithm for a frequency selective fading channel environment which exploits channel state information obtained through a feedback channel. The proposed algorithm significantly reduces computational complexity and satisfies the power budget. Also, its throughput is comparable to the optimum solution. Simulation results support the claim stated.

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  Cite this article

[IEEE Style]

S. Oh, H. Ko, S. Kwon, C. Kim, "Low Complexity Bit Loading Algorithm with Power-constraint for OFDM-based Wireless Sensor Communication," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 12, pp. 1483-1490, 2009. DOI: .

[ACM Style]

Seoungyoul Oh, Hyeonmok Ko, Soonmok Kwon, and Cheeha Kim. 2009. Low Complexity Bit Loading Algorithm with Power-constraint for OFDM-based Wireless Sensor Communication. The Journal of Korean Institute of Communications and Information Sciences, 34, 12, (2009), 1483-1490. DOI: .

[KICS Style]

Seoungyoul Oh, Hyeonmok Ko, Soonmok Kwon, Cheeha Kim, "Low Complexity Bit Loading Algorithm with Power-constraint for OFDM-based Wireless Sensor Communication," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 12, pp. 1483-1490, 12. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880