TY - GEN
T1 - Orthogonal modulation based cross-layer approach for energy efficiency in wireless sensor networks
AU - Tang, Qiuling
AU - Wen, Huan
AU - Sun, Changyin
AU - Deng, Li
PY - 2010
Y1 - 2010
N2 - Energy conservation is a critical problem in wireless sensor networks (WSNs). Cross-layer design can provide energy efficiency through joint energy management and optimization. In this paper, based on two orthogonal modulation schemes-frequency shift keying (FSK) and pulse position modulation (PPM), we put forward a multi-layer energy efficiency optimal joint design approach for WSNs. Considering one of main parameters of modulation - constellation size as global variable, the design unifies the energy-efficient factors in hardware layer, link layer, MAC layer and routing layer, which accordingly include battery discharge nonlinearity, node circuit multi-mode operation, signal low-power transmit, a variable-length TDMA scheme and multi/single-hop routing. The total energy consumption across the layers and its minimization problem are hence formulated. Then, a string-star hybrid network derived from controlled deployments is taken as an example to numerically analyze and optimize the design. The results show that PPM-based design is more energy-efficient than FSK-based design in all our observed deployment scenarios. The energy-saving can be up to 75% for PPM-based design and 51% for FSK-based design, respectively.
AB - Energy conservation is a critical problem in wireless sensor networks (WSNs). Cross-layer design can provide energy efficiency through joint energy management and optimization. In this paper, based on two orthogonal modulation schemes-frequency shift keying (FSK) and pulse position modulation (PPM), we put forward a multi-layer energy efficiency optimal joint design approach for WSNs. Considering one of main parameters of modulation - constellation size as global variable, the design unifies the energy-efficient factors in hardware layer, link layer, MAC layer and routing layer, which accordingly include battery discharge nonlinearity, node circuit multi-mode operation, signal low-power transmit, a variable-length TDMA scheme and multi/single-hop routing. The total energy consumption across the layers and its minimization problem are hence formulated. Then, a string-star hybrid network derived from controlled deployments is taken as an example to numerically analyze and optimize the design. The results show that PPM-based design is more energy-efficient than FSK-based design in all our observed deployment scenarios. The energy-saving can be up to 75% for PPM-based design and 51% for FSK-based design, respectively.
KW - Cross-layer design
KW - Energy efficiency
KW - Orthogonal modulation
KW - Wireless sensor networks (WSNs)
UR - https://www.scopus.com/pages/publications/78649833394
U2 - 10.1109/CyberC.2010.32
DO - 10.1109/CyberC.2010.32
M3 - 会议稿件
AN - SCOPUS:78649833394
SN - 9780769542355
T3 - Proceedings - 2010 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2010
SP - 129
EP - 134
BT - Proceedings - 2010 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2010
T2 - 2nd International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2010
Y2 - 10 October 2010 through 12 October 2010
ER -