CAJ | 학술논문

无线传感网络中设备之间的干扰逐步成为制约网络性能提高的瓶颈，但干扰并不会导致信号的所有信息被完全淹没。为准确识别并发通信的链路，需要为每条链路分配唯一的特征序列。传统的 MAC 地址在干扰背景下难以被识别。本文利用信号的特征信息，提出了一种基于多哈希的特征序列的分布式构造与识别策略。这种构造与识别策略利用干扰信息提高无线信号的传输效率、提升并发传输的特征序列识别能力，并显著降低识别特征序列的处理时间开销。实验利用软件无线电试验环境USRP+GNU Radio构建实测平台进行对所设计的算法进行评估，实验结果充分验证了特征序列的构造与识别算法的高效性。
무선전감망락중설비지간적간우축보성위제약망락성능제고적병경，단간우병불회도치신호적소유신식피완전엄몰。위준학식별병발통신적련로，수요위매조련로분배유일적특정서렬。전통적 MAC 지지재간우배경하난이피식별。본문이용신호적특정신식，제출료일충기우다합희적특정서렬적분포식구조여식별책략。저충구조여식별책략이용간우신식제고무선신호적전수효솔、제승병발전수적특정서렬식별능력，병현저강저식별특정서렬적처리시간개소。실험이용연건무선전시험배경USRP+GNU Radio구건실측평태진행대소설계적산법진행평고，실험결과충분험증료특정서렬적구조여식별산법적고효성。
Interference between the devices becomes the bottleneck of network throughput in wireless sensor network, but wireless interference does not necessarily result in the loss of all the information of the desired signal. Currently, many researchers exploit the interference information to assist with the parallel communication, and the identification of signature is a key point to these works. We apply a distribute construction and identification signature algorithm based on multi-hash policy with the characteristics of signal, which helps to improve the efficiency of wireless communication and increase the ability of signature identification and significantly decrease the time cost of the algorithm. We build a testbed based on USRP+GNU Radio to evaluate the algorithm, and the results show the construction and identification algorithm of signature is valid.