MULTIHOP RADIO NETWORK SYSTEM

PROBLEM TO BE SOLVED: To improve transmission characteristics by transmitting data through a plurality of paths of a multihop radio network having a plurality of paths. SOLUTION: In an originator node 210 in figure (a), an encoder 212 performs communication path encoding and a modulator 216 performs modulation. However, different from a conventional technology, the output of the encoder 212 is made into packets for each path by designating a relay path using a packetizer 214 for transmission of signals to a plurality of paths (here, two paths). In a receiver (see in figure (c)) of a destination node 260 after the signal from a plurality of paths is decoded by a decoder 262, a packet of binary data which is subjected to hard decision by de-packetizer/buffer 263 is removed and temporarily stored in a buffer for each path. A reliability information calculator 265 performs diversity synthesization for synthesizing that accounts for reliability. A synthetic decoder 267 corrects error on the basis of the synthesized signal. COPYRIGHT: (C)2005,JPO&NCIPI