This book reports the Engineeing Research carried out by the author- S. A. AHSAN RAJON and supervised by Prof. Dr. Md. Mahbubur Rahman in Computer Science and Engineering Discipline, Khulna University, Bangladesh. Energy efficient data communication is an elementary concern for ubiquitous computing. This book outlines an enhanced power-aware data communication scheme for wireless sensor networks. An extensive analysis of recent researches on data routing and data compression for wireless sensor network has also been presented in this book. This book mainly focuses on improved scheme for compression based data routing which achieves energy efficiency by employing cluster coordinators for balancing energy consumption by assigning the inter cluster communications to the cluster heads and the intra cluster communications to cluster coordinators along with the use of component ranking scheme and value pair based compression. Comprehensive mathematical models analyzing the multidimensional issues including energy efficiency, quality of service, data routing and data compression has also been incorporated in this book.