-  Yuanfang Chen, Mingchu Li, Lei Shu, Lei Wang, and Takahiro Hara, "A Proportional Fairness Backoff Scheme for Funneling Effect in Wireless Sensor Networks," Transactions on Emerging Telecommunications Technologies, volume 23, number 6, pages 585-597 October 2012.
-  Wataru Seino, Tomoki Yoshihisa, Takahiro Hara, and Shojiro Nishio, "A Communication Protocol to Improve Fairness and Data Amount on Sensor Data Collection with a Mobile Sink," Proc. of Int'l Conf. on Broadband and Wireless Computing, Communication and Applications (BWCCA 2010), pages 33-40 November 2010.
-  Chunsheng Zhu, Yuanfang Chen, Lei Wang, Lei Shu, and Yan Zhang, "Smac-Based Proportional Fairness Backoff Scheme in Wireless Sensor Networks," Proc. of Int'l Wireless Communications & Mobile Computing Conference (IWCMC 2010), pages 138-142 June 2010.