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This paper develops a brand new approach towards data transfer using position-modulated pulses. The core idea is to encode a data value in terms of the time gap between two transmitted pulses whose positions are modulated accordingly. It is shown that this concept allows sending a data value using significantly less number of pulses or logical bits as used in conventional packet-based transports. Significant savings may come from the fact that it does not require the large number of preamble bits needed for synchronization in packets. Fewer pulses can lead to reduced-energy overhead compared to packets. The framework is mainly targeted towards sensing applications in which energy is a premium. Building on this fundamentally new concept, methods are developed in this paper for: 1) pulse-based transport on transmit-only links, and 2) code compression to reduce the overall energy and transmission delay …