IEEE/ACM Transactions on Networking (TON)
Energy-efficient power/rate control and scheduling in hybrid TDMA/CDMA wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
A cross-layer approach to energy efficiency for adaptive MIMO systems exploiting spare capacity
IEEE Transactions on Wireless Communications
End-to-end energy-bandwidth tradeoff in multihop wireless networks
IEEE Transactions on Information Theory
Energy efficient and delay optimized TDMA scheduling for clustered wireless sensor networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Cross layer optimization for efficient data aggregation in multi-hop wireless sensor networks
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
The relay selection and transmission trade-off in cooperative communication systems
IEEE Transactions on Wireless Communications
Cross-layer channel-aware approaches for modern wireless networks
MACOM'10 Proceedings of the Third international conference on Multiple access communications
IEEE Transactions on Evolutionary Computation - Special issue on preference-based multiobjective evolutionary algorithms
Joint routing and resource allocation via superposition coding for wireless data networks
IEEE Transactions on Signal Processing
Review: A survey on cross-layer solutions for wireless sensor networks
Journal of Network and Computer Applications
Leveraging dynamic spare capacity in wireless systems to conserve mobile terminals' energy
IEEE/ACM Transactions on Networking (TON)
Towards minimum delay broadcasting and multicasting in multihop wireless networks
COCOA'11 Proceedings of the 5th international conference on Combinatorial optimization and applications
Minimum delay routing in multihop wireless networks
WASA'11 Proceedings of the 6th international conference on Wireless algorithms, systems, and applications
Energy-Efficient Resource Allocation in Mobile Networks with Distributed Antenna Transmission
Mobile Networks and Applications
Link optimization for energy-constrained wireless networks with packet retransmissions
Wireless Communications & Mobile Computing
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The general joint design of the physical, MAC, and routing layers to minimize network energy consumption is complex and hard to solve. Heuristics to compute approximate solutions and high-complexity algorithms to compute exact solutions have been previously proposed. In this paper, we focus on synchronous small-scale networks with interference-free link scheduling and practical MQAM link transmission schemes. We show that the cross-layer optimization problems can be closely approximated by convex optimization problems that can be efficiently solved. There are two main contributions of this paper. First of all, we minimize the total network energy that includes both transmission and circuit energy consumptions, where we explore the tradeoff between the two energy elements. Specifically, we use interference-free TDMA as the medium access control scheme. We optimize the routing flow, TDMA slot assignment, and MQAM modulation rate and power on each link. The results demonstrate that the minimum energy transmission scheme is a combination of multihop and single-hop transmissions for general networks; including circuit energy favors transmission schemes with fewer hops. Secondly, based on the solved optimal transmission scheme, we quantify the best trade-off curve between delay and energy consumption, where we derive a scheduling algorithm to minimize the worst-case packet delay.