无线传感器网络中d—BIP算法的改进

无线传感器网络的广播问题中，能量有效是其重要目标和首要难题。如果对广播算法进行优化就可以极大地节省节点能量、提高传输效率。所以在d-BIP算法的基础上，通过改进自适应定向天线模型调整波束宽度的方式，提出了性能更加优越的c-d-BIP算法。在建立支撑树时，每加入一个新节点，首先判断是否符合以增大波束宽度的方式来传输消息给新节点的条件，如果符合则以增大波束宽度的方式来传输消息，否则重新建立一个波束来传输。仿真结果表明c-d-BIP能有效地节约能量，特别在网络节点密度较大时性能更加优越。

Improved Algorithm of d-BIP in Wireless Sensor Network

In wireless sensor network broadcasting problem,energy efficienee is the important goal and primary problem. If optimize the broadcast algorithm,node energy can greatly be saved and improve the transmission efficiency. A more superior performance new algo- rithm called c-d-BIP was proposed which was an improvement upon d-BIP, through improving the way of adjustment beam width. In the construction of the spanning tree,each to join a new node, firstly judge whether accord with the standard of increasing the beam width way to transfer messages, if meet the standard transfer news in the way of increasing the beam width, or establish a new beam to transmit. The simulation results show that c-d-BIP can be effective in saving energy,especially in the big density network,it shows more superior performance.