ASM: Adaptive Voice Stream Multicast Over Low-Power Wireless Networks
Recently, using Low-power Wireless Networks (LWNs) for emergency response has gained increasing attention. In particular, the emerging low-power wireless audio platforms (e.g., Crossbow IMB 400, SenEar, and Csiro) have enabled the construction of critical ad hoc voice communication networks in many emergency situations such as rescuing miners trapped underground or survivors after a earthquake. In such scenarios, existing communication and power infrastructures are often destroyed, an ad hoc voice multicast system can help to deliver useful information from the base station to survivors. Such a system based on low-power audio platforms is beneficial due to its low cost and easy deployment.