Most of the energy aware routing approaches for unattended wireless sensor networks pursue multi-hop paths in order to minimize the total transmission power. Since almost in all sensor networks data are routed towards a single sink (base-station), hops close to that sink become heavily involved in packet forwarding and thus their batteries get depleted rather quickly. In this paper we investiga...

This paper studies the problem of relay-assisted user scheduling for downlink wireless transmission. The transmitting base station employs hybrid automatic-repeat-request (ARQ) transmission with the possible assistance of a set of fixed relays to serve a set of mobile users. By minimizing a cost function that depends on the queue lengths at the base station and the number of retransmissions of ...

With the expansion of Internet technology and network scale, data volume base station traffic also shows explosive growth. Predicting has high practical guiding significance for research, management control. Aiming at problem accurate prediction traffic, this paper proposes a gated recurrent unit neural model (GRU model) based on algorithm, which can predict according to periodicity fluctuating...

In this paper, we describe the enhancements made to an existing General Packet Radio Service (GPRS) network OPNET model. These enhancements to the existing model are the implementations of the Logical Link Control (LLC) layer, the Base Station Subsystem (BSS), and the cell update procedure. We first present an overview of the GPRS network, the LLC layer, and the existing OPNET model. We then de...