David J. Goodman

Learn More
A major challenge in operation of wireless communications systems is the efficient use of radio resources. One important component of radio resource management is power control, which has been studied extensively in the context of voice communications. With increasing demand for wireless data services, it is necessary to establish power control algorithms(More)
With cellular phones mass-market consumer items, the next frontier is mobile multimedia communications. This situation raises the question of how to do power control for information sources other than voice. To explore this issue, we use the concepts and mathematics of microeconomics and game theory. In this context, the Quality of Service of a telephone(More)
Packet switched technology has been demonstrated attractive for use in cellular radio systems with short propagation delay, not only for data but also for voice. In fact, packet voice can eeciently exploit speech on-oo activity to improve bandwidth use over TDMA. Such an approach has been rst suggested in 1], where Packet Reservation Multiple Access, an(More)
0163-6804/97/$10.00 © 1997 IEEE SM (the Global System for Mobile Communications) is the pan-European digital cellular standard published by ETSI (the European Telecommunications Standards Institute). It is the world’s most popular second-generation cellular system. In 1997, there are more than 40 million GSM subscribers in more than 100 countries. In(More)
In this paper we consider distributed power control in a multicell wireless data system and study the effect of pricing transmit power. Drawing on our earlier work in [1], we formulate the QoS of a data user via a utility function measured in bits per Joule. We consider distributed power control, modeled as a non-cooperative game, where users maximize their(More)
Problem 6.2.1 In Example 6.3, the daily noontime temperature at Newark Airport is a discrete time, continuous value random process. However, if the temperature is recorded only in units of one degree, then the process was would be discrete value. In Example 6.4, the the number of active telephone calls is discrete time and discrete value. The dice rolling(More)
Single carrier frequency division multiple access (SCFDMA), which utilizes single carrier modulation and frequency domain equalization is a technique that has similar performance and essentially the same overall complexity as those of OFDM, in which high peak-to-average power ratio (PAPR) is a major drawback. An outstanding advantage of SC-FDMA is its lower(More)
We examine single carrier frequency division multiple access (SC-FDMA) with frequency domain equalization for uplink data transmission. We investigate channel-dependent scheduling schemes to achieve multi-user diversity and frequency selective diversity. There are two subcarrier mapping schemes in SCFDMA: Localized FDMA (L-FDMA) and Interleaved FDMA(More)
We develop a new framework for distributed power control for wireless data based on the economic principles of utility and pricing. Utility is defined as the measure of satisfaction that a user derives from accessing the wireless data network. Properties of utility functions are introduced and a specific function, based on throughput per terminal battery(More)