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Future wireless ad-hoc systems are expected to extensively rely on cooperation between terminals. On this line, cooperative retransmission protocols are particularly promising due to their opportunistic and flexible exploitation of both spatial and time diversity. In this book, some of the major issues that hinder the practical implementation of this technology are identified and pertaining solutions are proposed and analyzed. Firstly, cooperative retransmission protocols are reexamined in terms of energy efficiency and their limitation for short transmission ranges is observed. An...

A follow up of a classic book on human services organizational theory and supported by new research, the authors present state of the art theory on how and why human service organizations operate they way they do.

With the passage of the 1996 welfare reform, not only welfare, but poverty and inequality have disappeared from the political discourse. The decline in the welfare rolls has been hailed as a success. This book challenges that assumption. It argues that while many single mothers left welfare, they have joined the working poor, and fail to make a decent living. The book examines the persistent demonization of poor single-mother families; the impact of the low-wage market on perpetuating poverty and inequality; and the role of the welfare bureaucracy in defining deserving and undeserving poor....