CAJ | 학술논문

随着无线传感器网络对图像、视频和音频等多媒体信息的采集需求日益增多,使得传感器网络的QoS路由具有极大的挑战性.本文在最大-最小蚁群算法(MMAS)的基础上提出一种参数自适应的传感器网络QoS路由算法APAS.在该算法中,通过信息素和挥发系数的自适应变化,改善了MMAS收敛速度慢的缺点,提高了全局搜索能力.APAS还通过使用定向广播,让能量有变化的节点只需向有价值的邻居通告自己的剩余能量,从而使全网能耗得以降低.对APAS的仿真证明,APAS有较好的QoS路由性能,并且使传感器网络有较长的生存周期.
수착무선전감기망락대도상、시빈화음빈등다매체신식적채집수구일익증다,사득전감기망락적QoS로유구유겁대적도전성.본문재최대-최소의군산법(MMAS)적기출상제출일충삼수자괄응적전감기망락QoS로유산법APAS.재해산법중,통과신식소화휘발계수적자괄응변화,개선료MMAS수렴속도만적결점,제고료전국수색능력.APAS환통과사용정향엄파,양능량유변화적절점지수향유개치적린거통고자기적잉여능량,종이사전망능모득이강저.대APAS적방진증명,APAS유교호적QoS로유성능,병차사전감기망락유교장적생존주기.
Image, video and audio information are gathered by wireless sensor networks more and more with each passing day, it's a great challenge for the QoS routing. In this paper,a QoS routing algorithm(APAS) with adaptive parameters based on Max-Min Ant System (MMAS) Algorithm is presented. The performance of algorithm is improved by the adaptive pheromone and evaporation coefficient. With the beamed broadcasting, the node of energy changed only needs to announce the necessary neighbours. The simulation for APAS shows that the improved algorithm can search QoS routes effectively and the networks have longer life.