20.1 INTRODUCTION20.2 HOW CAN WE IMPLEMENT NETWORK CODING IN A PRACTICAL SENSOR NETWORK?20.3 DATA COLLECTION AND COUPON COLLECTOR PROBLEM20.4 DISTRIBUTED STORAGE AND SENSOR NETWORK DATA PERSISTENCE20.5 DECENTRALIZED OPERATION AND UNTUNED RADIOS20.6 BROADCASTING AND MULTIPATH DIVERSITY20.7 NETWORK, CHANNEL, AND SOURCE CODING20.8 IDENTITY-AWARE SENSOR NETWORKS20.9 DISCUSSIONACKNOWLEDGMENTSREFERENCES