Bo Xu Lianfeng Shen Feng Yan Issues on the design of vehicular node positioning based on Doppler-shifted frequency measurement on highway. 1316-1320 2009 IWCMC http://doi.acm.org/10.1145/1582379.1582667 conf/iwcmc/2009 db/conf/iwcmc/iwcmc2009.html#XuSY09