TY - JOUR
T1 - Making Wireless Body Area Networks Robust under Cross-Technology Interference
AU - Hou, Yantian
AU - Li, Ming
AU - Yu, Shucheng
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/1
Y1 - 2017/1
N2 - Wireless body area networks (BANs) demand high-quality service. However, as BANs will be widely deployed in densely populated areas, they inevitably face RF cross-technology interference (CTI) from non-protocol-compliant wireless devices operating in the same spectrum range. The main challenges to defending against such a strong CTI come from the scarcity of spectrum resources, the uncertainty of the CTI sources and BAN channel status, and the stringent hardware constraints. In this paper, we first experimentally characterize the adverse effect on BAN reliability caused by the non-protocol-compliant CTI. Then, we formulate a joint routing and power control (JRPC) problem, which aims at minimizing energy consumption under strong CTI while satisfying node reachability and delay constraints. We reformulate our problem into a mixed integer linear programing problem and then derive the optimal results through IBM's CPLEX. A practical protocol, including a heuristic JRPC algorithm, is then proposed, in which we address the challenge of fast link-quality measurement by proposing a passive link-quality estimation and prediction method. Through experiments and simulations, we show that our protocol can assure the robustness of BAN even when the CTI sources are in very close vicinity, using a small amount of energy on commercial-off-the-shelf sensor devices.
AB - Wireless body area networks (BANs) demand high-quality service. However, as BANs will be widely deployed in densely populated areas, they inevitably face RF cross-technology interference (CTI) from non-protocol-compliant wireless devices operating in the same spectrum range. The main challenges to defending against such a strong CTI come from the scarcity of spectrum resources, the uncertainty of the CTI sources and BAN channel status, and the stringent hardware constraints. In this paper, we first experimentally characterize the adverse effect on BAN reliability caused by the non-protocol-compliant CTI. Then, we formulate a joint routing and power control (JRPC) problem, which aims at minimizing energy consumption under strong CTI while satisfying node reachability and delay constraints. We reformulate our problem into a mixed integer linear programing problem and then derive the optimal results through IBM's CPLEX. A practical protocol, including a heuristic JRPC algorithm, is then proposed, in which we address the challenge of fast link-quality measurement by proposing a passive link-quality estimation and prediction method. Through experiments and simulations, we show that our protocol can assure the robustness of BAN even when the CTI sources are in very close vicinity, using a small amount of energy on commercial-off-the-shelf sensor devices.
KW - Body area networks
KW - joint routing and power control
KW - multihop
KW - optimization
KW - wideband interference
UR - http://www.scopus.com/inward/record.url?scp=85009786181&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85009786181&partnerID=8YFLogxK
U2 - 10.1109/TWC.2016.2624299
DO - 10.1109/TWC.2016.2624299
M3 - Article
AN - SCOPUS:85009786181
SN - 1536-1276
VL - 16
SP - 429
EP - 440
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 1
M1 - 7731176
ER -