This simple feature phone has 4G LTE, a large screen and keypad, and HD Voice. Features include a 2-megapixel camera, HD video capture, music player, memory card slot, 3.5mm audio jack, Bluetooth, ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

This device combines a Windows Mobile 5 PDA with a quad-band GSM phone. Key features include a slide-out text keyboard, 802.11g Wi-Fi, EDGE, Bluetooth, speakerphone, and a miniSD memory card slot.