Wireless sensor networks(WSN)are designed to monitor the physical properties of the target area.The received signal strength(RSS)plays a significant role in reducing sensor node power consumption during data transmiss...Wireless sensor networks(WSN)are designed to monitor the physical properties of the target area.The received signal strength(RSS)plays a significant role in reducing sensor node power consumption during data transmission.Proper utilization of RSS values with clustering is required to harvest the energy of each network node to prolong the network life span.This paper introduces the RSS-based energy-efficient selective clustering technique using a master node(RESCM)to improve energy utilization using a master node.The master node positioned at the center of the network area and base station(BS)is placed outside the network area.During cluster head(CH)selection,the node with a high RSS value is more likely to become CH.The network is divided into segments according to the distance from the master node.All nodes near BS or master node transmit their data using direct transmission without the clustering process.The simulation results showed that the RESCM method improves the total network lifespan effectively.展开更多
Secure multicasting is one of the major requirementsfor today’s communication arena.And for any kindof secure communication,a key-distribution schemeis the most sensible part.Being a highly promising,low-cost,and eme...Secure multicasting is one of the major requirementsfor today’s communication arena.And for any kindof secure communication,a key-distribution schemeis the most sensible part.Being a highly promising,low-cost,and emerging wireless technology,Bluetooth has key distribution supports for securemulticasting over its unit one-hop network,piconet.Bluetooth core specification[1]defines basic securityprotocols for key generation,encryption,andauthentication for intra-piconet security.However,not much attention has been paid so far on securingmulticasting over the Bluetooth Scatternet;nevertheless,multicasting is quite a sensible aspectof modern communication arena.Here in this paper,we extend the piconets key distribution scheme topresent a new key management scheme for securemulticasting over Bluetooth Scatternets.Our keymanagement scheme is compatible to the currentBluetooth architecture design as we rely onBluetooth’s existing security algorithms to proposeour resolution.展开更多
基金The authors are grateful to the Raytheon Chair for Systems Engineering for funding.
摘要Wireless sensor networks(WSN)are designed to monitor the physical properties of the target area.The received signal strength(RSS)plays a significant role in reducing sensor node power consumption during data transmission.Proper utilization of RSS values with clustering is required to harvest the energy of each network node to prolong the network life span.This paper introduces the RSS-based energy-efficient selective clustering technique using a master node(RESCM)to improve energy utilization using a master node.The master node positioned at the center of the network area and base station(BS)is placed outside the network area.During cluster head(CH)selection,the node with a high RSS value is more likely to become CH.The network is divided into segments according to the distance from the master node.All nodes near BS or master node transmit their data using direct transmission without the clustering process.The simulation results showed that the RESCM method improves the total network lifespan effectively.
摘要Secure multicasting is one of the major requirementsfor today’s communication arena.And for any kindof secure communication,a key-distribution schemeis the most sensible part.Being a highly promising,low-cost,and emerging wireless technology,Bluetooth has key distribution supports for securemulticasting over its unit one-hop network,piconet.Bluetooth core specification[1]defines basic securityprotocols for key generation,encryption,andauthentication for intra-piconet security.However,not much attention has been paid so far on securingmulticasting over the Bluetooth Scatternet;nevertheless,multicasting is quite a sensible aspectof modern communication arena.Here in this paper,we extend the piconets key distribution scheme topresent a new key management scheme for securemulticasting over Bluetooth Scatternets.Our keymanagement scheme is compatible to the currentBluetooth architecture design as we rely onBluetooth’s existing security algorithms to proposeour resolution.