Research Center of Internet of Things,China University of Mining and Technology School of Information and
Electrical Engineering,China University of Mining and Technology

为提高无线多媒体传感器网络(WMSN)在煤矿井下的误码率特性,并实现高效的时域超宽带(UWB)信号收发策略,根据相邻节点间是否存在可视链路以及巷道多径的密集程度,对UWB井巷传播环境进行综合信道建模和参数化区分;以抗井巷多径传播为目标,提出无码间干扰的UWB信号发射策略。研究结果表明:所提出的UWB信号收发策略能有效利用矿井巷道多径传播特性,在不同的井巷环境中满足WMSN对软、硬件实现低复杂度和低误码率性能的需求。

In order to improve bit error rate features of wireless multi-media sensor network in underground coal mine and to realize high efficient transmitting and「 eceiving strategy of the UWB signals,according to a visual link circuit existed or not in the adjacent nodes and the multipath intensive degree of gateway,a comprehensi ve signal channel modeling and the parameter distinguishment was conducted on the UWB transmission environment in underground mine. Taking resist the mine multi path transmission as a target,a UWB signal transmission strategy with non intersymbol interferences was provided. The study results showed that the UWB signal trans mission and receiving strategy provided could effectively uilize the features of multipath transmission in mine roadway and could meet the requirements of software an d hardware by WMSN to realize complicated and low bit error rate performances in different mine roadway environment.

江苏省自然科学基金资助项目(BK2012141)；国家留学基金委公派博士后研究资助项目(2900759643)；中国博士后科学基金资助项目(20100481185)；江苏省博士后科学基金资助项目(1101108C)；中央高校基本科研业务费专项资金资助项目(2010QNA27)；