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In the energy‐harvesting wireless sensor networks (EH‐WSNs) with Time division multiple access (TDMA), it is challenging to assign time slots to the nodes because energy shortage causes some nodes unable to transmit in their time slots, resulting in the ...

The asymmetry traffic between downlink (DL) and uplink (UL) in massive machine‐type communication (mMTC) systems is so prominent that it makes the traditionally fixed frame protocols insufficient to handle. Meanwhile, the dynamic time‐division duplexing (...

Cardinality estimation in radio frequency identification systems has been applied to estimate the population of tags in many applications. However, it is more meaningful to estimate the number of tags moved in and out in a dynamic radio frequency ...

Two‐way relaying systems efficiently accomplish transmissions in both directions within dual‐hop, hence, two time slots can be saved compared with one‐way relaying. However, the conventional two‐way relaying protocol requires the assumption of symmetric ...

Physical layer security has been recognised as a promising technique to realise secure wireless communications. A novel interference masking approach is proposed for secure broadcast scenarios. Specifically, when there is an external jamming node, ...

Data aggregation is a critical functionality in wireless sensor networks. This paper focuses on enhancing energy and delay efficiency for the data aggregation scheduling problem. In the existing data aggregation scheduling algorithms, a sensor node has ...

Many e-tailers providing attended home delivery, especially e-grocers, offer narrow delivery time slots to ensure satisfactory customer service. The choice of delivery time slots has to balance marketing and operational considerations, which results in ...

Renewable energy technology has become a promising solution to reduce energy concerns due to limited battery in wireless sensor networks. While this enables us to prolong the lifetime of a sensor network (perpetually), unstable environmental energy ...

In this paper, we describe a framework for exploring various multiplexing approaches in optical networks and evaluating their cost-effectiveness. A comprehensive comparative study of two representative approaches, known as path multiplexing (PM) and ...