póduplex

Póduplex is a term used in digital communications to describe a bidirectional data transmission approach that blends characteristics of parallel and duplex communication. In a póduplex system, two logical subchannels carry data in opposite directions over a shared physical medium within a coordinated time frame. Unlike true full duplex, where simultaneous transmission and reception occur with robust isolation, póduplex relies on time-division or interleaved signaling to limit interference, trading some simultaneity for reduced hardware complexity and cost.

Implementation typically uses time-division multiplexing or orthogonal signaling across two lanes, with a synchronization mechanism to align directionality. A póduplex protocol may designate a control channel for negotiation and a payload channel for data, enabling adaptive slot sizing based on traffic patterns. Variants differ in slot length, the degree of asynchrony tolerated, and how quickly the system can switch direction.

Advantages include lower transceiver complexity, reduced self-interference compared with conventional full duplex, and potential energy savings in low-power devices. Limitations involve reduced peak throughput and added latency due to interleaving, making póduplex more suitable for moderate data rates and bursty traffic rather than high-demand backhaul.

Applications are discussed in niche wireless networks, sensor networks, and Internet of Things contexts where equipment simplicity and cost are prioritized. The term remains mainly descriptive and is not as widely standardized as half-duplex or full-duplex terminology.