Mobile computing allows users to access network services anywhere through mobile devices like smartphones and tablets connected to wireless networks. It involves mobile communication infrastructure, portable hardware devices, and software applications designed for mobility. The document outlines the key benefits of mobile computing like connectivity and productivity. It also discusses wireless network technologies, limitations around power and security, and applications in fields like real estate, law, and emergency services. Current trends include advances in artificial intelligence, internet of things, 5G networks, mobile payments, and e-commerce. While limitations remain, mobile computing continues to improve with technological progress.
M-commerce involves using mobile devices to transact, communicate, and entertain through wireless networks. It combines e-commerce and wireless web capabilities. Key features of m-commerce include cash deposits/withdrawals, third party deposits, retail purchases, prepaid top-ups, cash transfers, and bill payments. Mobile devices must support barcode scanning, display, and data transmission for point-of-sale transactions. Technologies used include GSM, 3G, Bluetooth, Wi-Fi, SMS, and MMS. Information is provided by global electronic parties and data synchronization networks. Transactions are facilitated through infrastructure involving multiple steps. Applications include advertising, in-store navigation, comparisons, payments, publications, ticketing, and catalogs. Adv
The OpenRAN architecture, empowered by intelligence and openness principles, is the foundation for building the virtualized RAN on open hardware and cloud, with embedded AI-powered radio control. The architecture is based on standards defined by O-RAN Alliance, which completely support and are complementary to standards promoted by 3GPP and other industry standards organizations.
This document provides an overview and comparison of LoRa and NB-IoT low-power wide area network (LPWA) technologies. It discusses that both technologies were developed for applications requiring long battery life and low data rates. LoRa is an unlicensed standard based on chirp spread spectrum modulation, while NB-IoT is a licensed narrowband cellular standard developed by 3GPP. Key differences are that LoRa has lower device costs and supports higher latencies, while NB-IoT can leverage existing cellular networks and has higher data rates. In conclusion, LoRa is a new dedicated technology for IoT platforms, while NB-IoT uses existing cellular infrastructure.