Abstract—DetF (Detect-and-Forward) is one of the relaying
schemes for multi-hop communications. In DetF, each relay
node determines the data bit in the packet by hard-decision and
only the destination node decodes and corrects the packet. If
each relay node can observe how many errors are accumulated
in the packet it relays, it can notice a good opportunity for
decoding and correcting the accumulated errors in the packet.
For DetF with error detection, we need the error detection
scheme which can detect not only the existence of errors but the
amount of errors. This paper focuses on a modified TPSK
(ternary phase shift keying) using AMI (alternate mark
inversion) code which can estimate the amount of errors easily.
We compare this error detection scheme with BPSK (binary
phase shift keying) using parity check code. This paper evaluates
error estimation performance of these error detection schemes
in multi-hop communications under fading environments. As a
result, the modified TPSK with phases 0, 135 and -135 deg is the
most proper to an error detection scheme for DetF.
Index Terms—Multi-hop network, parity check code, AMI
code, error estimation.
The authors are with the Graduate School of Engineering Shizuoka
University, Johoku3-5-1, Naka, Hamamatsu, Shizuoka, 432-8561, Japan
(e-mail: f0330144@ipc.shizuoka.ac.jp, dkoouti@ipc.shizuoka.ac.jp).
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Cite:Kotoko Yamada and Kouji Ohuchi, "Error Estimation Scheme Using AMI Code for Detect-and-Forward Multi-hop Communications," Journal of Advances in Computer Networks vol. 3, no. 2, pp. 127-133, 2015.
