Multi user MIMO and power management for Wi-Fi and cellular communication

The device may be enabled to be connected to a first and second cellular network at two different towers simultaneously to provide more reliable connections, or to split voice and data traffic. The devices may further be enabled to selectively turn off radios and place such radios in wait states or low power listen states based on the network connectivity, application rules and application hierarchies. Sensors may forward packets to a mobile device when in the vicinity and these packets may be synchronized selectively with a network server when the mobile device is connected to a network and has sufficient or cheap bandwidth. Various IoT and sensor devices may use non reliable transmit and receive protocols in addition to TCP/IP for uncritical data.