Adaptive wireless transmission strategy for maximizing energy efficiency

Maximizing Efficiency of Electromagnetic Resonance Wireless Power Transmission Systems with Adaptive Circuits

Wireless power transmission (WPT) is a cutting-edge technology that signifies a new era for electricity without a bunch of wires. Wireless power or wi-power is increasingly becoming the main interest of many R&D firms to eliminate the “last cable” after the wide public exposure of Wi-Fi lately. Even though the first idea was devised from Nikola Tesla in the early 20th century (Tesla, 1919), the...

Adaptive Transmission Scheduling for Energy-Aware Real-Time Wireless Communication

Real-time low-power wireless networks are increasingly being used in applications such as: Industrial Internet-ofThings, Smart City technologies, and critical infrastructure monitoring. These networks typically use time-slotted superframe techniques to ensure real-time performance. Often the time slots are assigned statically, and energy conservation is regulated to other mechanisms such as dut...

Energy Efficiency of MIMO Transmission Strategies in Wireless Sensor Networks

In this paper, a cooperative and hierarchical wireless sensor network is considered. By allowing sensor nodes in close proximity to cooperate in transmission, and by introducing a powerful mobile agent equipped with an antenna array to collect data, a virtual MIMO channel can be formed, on which recent advances in MIMO technologies can be applied. Analysis in the wideband regime reveals that, w...

Maximizing Energy Efficiency for Consumption Circuit Power in Downlink Massive MIMO Wireless Networks

Received Jun 8, 2017 Revised Aug 30, 2017 Accepted Sep 14, 2017 Massive multi-input–multi-output (MIMO) systems are crucial to maximizing energy efficiency (EE) and battery-saving technology. Achieving EE without sacrificing the quality of service (QoS) is increasingly important for mobile devices. We first derive the data rate through zero forcing (ZF) and three linear precodings: maximum rati...

A Transmission Expansion Planning Model for Maximizing Merchant Investment