In this paper, a joint source-channel coding with power control technique is proposed that will minimize the average end-to-end distortion amongst all users, subject to a constraint on the total bit rate used for source and channel coding. Each user in the system is arbitrarily assigned either a low-motion or a high-motion video sequence to transmit. To reduce the computational complexity of th...

In an environment such as underwater channel where placing test equipments are difficult to handle, it is much practical to have hardware simulators to examine suitably designed transceivers (transmitter/receiver). The simulators of this kind will then allow researchers to observe their intentions and carry out repetitive tests to find suitable digital coding/decoding algorithms. In this p...

He then showed that the most efficient solution to this fundamental problem necessarily involved coding the selected message, before transmission over the channel. Shannon did not say exactly how this coding should be done; he only proved mathematically that efficient coding schemes must exist. Since 1948, a whole generation of later researchers has validated Shannon’s work by devising explicit...

By only sending the parity bits, joint source-channel coding can be natively achieved with lowdensity parity-check codes. However, the code ensemble design of optimal low-density parity-check codes for joint source-channel coding over asymmetric communication channels is difficult. To circumvent such a difficulty, source-channel adaptors is proposed in this paper. By using the source-channel ad...

We compare two strategies for lossy source description across a pair of unreliable channels. In the first strategy, we use a broadcast channel code to achieve a different rate for each possible channel realization, and then use a multiresolution source code to describe the source at the resulting rates. In the second strategy, we use a channel coding strategy for two independent channels couple...