Multiple description trellis-coded quantization

We present a construction of multiple description trellis-coded quantizers. We use the tensor product of trellises to build a trellis which is applica ble to multiple description coding. The problems of index assignment and se t partitioning for the resulting trellis are considered, The Viterbi algori thm provides the best path for encoding and the design procedure utilizes a generalized Lloyd algorithm. The encoding process simultaneously generates all the transmitted sequences. Furthermore, the complexity of the scheme i s almost independent of the rate. The quantizer provides remarkable perform ance with little encoding complexity.