Harlan B. Russell

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The focus of this paper is on the performance of an adaptive transmission protocol for frequency-hop (FH) radio networks in which the radios can adjust the power in the transmitted signal and the rate of a Reed-Solomon code io respond to variations in partial-band interference and propagation loss. The adaptation is based on side information from the FH(More)
A new method is described for routing multimedia traffic in a frequency-hop (FH) store-and-forward packet radio network. The method is illustrated for traffic of two types, each type having its own throughput, delay, and error-rate requirements. A typical application is the routing of voice and data packets in a distributed multiple-hop network. In such an(More)
An energy-efficient adaptive-transmission protocol for mobile frequency-hop spread-spectrum wireless communication networks is described and evaluated. The purpose of the protocol is to permit each of the mobile terminals to adjust its transmitter power and code rate to match the characteristics of the time-varying communication links in the network. The(More)
In a mobile ad hoc packet radio network using transmission scheduling, when a terminal boots and is ready to join the network it has no knowledge of the network’s current state. In order to send and receive packets without interference, the new terminal must have some means of notifying other terminals of its presence and exchanging information with them so(More)
In this paper we examine the effect of the receiver blocking problem on the performance of a direct-sequence ad hoc network in which a subset of the nodes employ multiple directional antennas. We present a packet transmission scheduling algorithm and a media access control (MAC) protocol that are designed to exploit the capabilities of the nodes with(More)