Constrained Codes for Joint Energy and Information Transfer
arXiv:1311.1187 · doi:10.1109/TCOMM.2014.2317480
Abstract
In various wireless systems, such as sensor RFID networks and body area networks with implantable devices, the transmitted signals are simultaneously used both for information transmission and for energy transfer. In order to satisfy the conflicting requirements on information and energy transfer, this paper proposes the use of constrained run-length limited (RLL) codes in lieu of conventional unconstrained (i.e., random-like) capacity-achieving codes. The receiver's energy utilization requirements are modeled stochastically, and constraints are imposed on the probabilities of battery underflow and overflow at the receiver. It is demonstrated that the codewords' structure afforded by the use of constrained codes enables the transmission strategy to be better adjusted to the receiver's energy utilization pattern, as compared to classical unstructured codes. As a result, constrained codes allow a wider range of trade-offs between the rate of information transmission and the performance of energy transfer to be achieved.
27 pages, 14 figures, Submitted Submitted in IEEE Transactions on Communications
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Cited by in corpus (7)
- Energy Harvesting Wireless Communications: A Review of Recent Advances
- H-AP Deployment for Joint Wireless Information and Energy Transfer in Smart Cities
- Skip-Sliding Window Codes
- Deep Learning-Based Decoding of Constrained Sequence Codes
- Are RLL Codes Suitable for Simultaneous Energy and Information Transfer?
- Analog Spatial Cancellation for Tackling the Near-Far Problem in Wirelessly Powered Communications (Extended Version)
- Subblock-Constrained Codes for Real-Time Simultaneous Energy and Information Transfer