A special application of embedded mobile computing systems are so-called Ad Hoc Wireless Sensor Networks (AWSN). Several according hardware and software platforms recently have been developed such as the popular software development toolkit and embedded operating system TinyOS. However, a new challenge addressed in this book is how to design such a network to fulfill various application requirements. This book starts with a state of the art analysis about AWSN research. The different AWSN domainsare categorized and presented with a special focus on potential automotive applications. Based on TinyOS the author suggests a top-down design approach and necessary enhancements to integrate various sensor scenarios with different constraints into a versatile sensor network. The design considerations for an automotive application are stepwise refined to finally satisfy more complex settings. The consequential implementation presents an AWSN software with advanced sensing and communication features, such as different duty cycles, acknowledged communication and remote configuration. This book is addressed to engineers and researchers of applied science.