Simulation Parameters Nodes 100 Normalized Network size 1 x 1 Normalized Average [d.sub.local] 0.1 Normalized Average [d.sub.long] 1 Pathloss Exponent 3 Packet size 128 bit Percentage of CHs 10% Convolution code G = (15 17 13 15).
Leib, "Evaluating the Performance of Convolution Codes over Block Fading Channels," IEEE Transactions on Information Theory, vol.45, no.5, pp.1643-1646, 1999.
According to NXP, the MRX2000 incorporates a
Convolution Code, an Advance Code (LDPC) and a 2x3 MIMO detector and uses Maximum Likelihood, all helping to improve performance.
The code used in satellite communication as well as in the Voyager mission [7]-[10]was the (2, 1, 6) Odenwalder[11]-[13]
convolution codes (Odenwalder 1970[14]-[15]).
[4] "A Parallel Viterbi Decoder for Block Cyclic and
Convolution Codes", Department of Electronics and Computer Science, University of Southampton.
The two types of codes in use today are block codes and
convolution codes. The encoder for a block code divides the data into a sequence of message blocks.
In Future, Viterbi calculation can be focused on
convolution codes with Viterbi decoding for burst errors.