JUMP mode---a dynamic window-based scheduling framework for Bluetooth scatternets
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
A Locally Coordinated Scatternet Scheduling Algorithm
LCN '02 Proceedings of the 27th Annual IEEE Conference on Local Computer Networks
ESRT: event-to-sink reliable transport in wireless sensor networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Wireless Sensor Networks: Architectures and Protocols
Wireless Sensor Networks: Architectures and Protocols
Adaptive Scatternet Support for Bluetooth Using Sniff Mode
LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks
A Minimum Cost Heterogeneous Sensor Network with a Lifetime Constraint
IEEE Transactions on Mobile Computing
Proceedings of the conference on Design, Automation and Test in Europe - Volume 1
Walk-In Bridge Scheduling in Bluetooth Scatternets
Cluster Computing
Performance Modeling And Analysis Of Bluetooth Networks: Polling, Scheduling, and Traffic Control
Performance Modeling And Analysis Of Bluetooth Networks: Polling, Scheduling, and Traffic Control
Interconnecting 802.15.4 clusters in master-slave mode: queueing theoretic analysis
ISPAN '05 Proceedings of the 8th International Symposium on Parallel Architectures,Algorithms and Networks
Performance of a Beacon Enabled IEEE 802.15.4 Cluster with Downlink and Uplink Traffic
IEEE Transactions on Parallel and Distributed Systems
A flexible scatternet-wide scheduling algorithm for Bluetooth networks
PCC '02 Proceedings of the Performance, Computing, and Communications Conference, 2002. on 21st IEEE International
The impact of MAC parameters on the performance of 802.15.4 PAN
Ad Hoc Networks
Bridges of Bluetooth county: topologies, scheduling, and performance
IEEE Journal on Selected Areas in Communications
International Journal of Ad Hoc and Ubiquitous Computing
| Hi-index | 0.00 |
Individual IEEE 802.15.4 clusters with separate coordinators can be interconnected to form larger networks. In this paper, we investigate the performance of 802.15.4 beacon enabled network which consists of @k source clusters interconnected to a sink cluster in a master-slave manner. The bridging function is performed by the coordinator of the source cluster, which periodically visits the sink cluster as an ordinary node. The bridge can deliver its data to the sink coordinator either by competing with other nodes in the sink cluster using the CSMA-CA access mechanism, or by using the dedicated GTS slots allocated by the sink coordinator. We compare the performance of these approaches under varying cluster size and packet arrival rate, and also consider both acknowledged and non-acknowledged transmission in the CSMA part of the superframe. We have presented numerical and simulation results for @k=1 and @k=2 and discussed the performance trend when @k further increases. The results for single source cluster show that under variable and low to moderate network loads, the CSMA approach is more adaptable to traffic conditions than GTS; under moderate to high loads, the use of acknowledged traffic leads to drastic performance deterioration of the CSMA bridge, whereas the GTS bridge is still able to provide reasonable performance. When number of source clusters increases, acknowledged CSMA-CA bridge mode shows larger performance deterioration in the inter-cluster traffic than in the local sink traffic. GTS interconnection in the presence of multiple source clusters, preserves the intensity of inter-cluster interconnections but it sacrifices the performance of the local sink traffic. In non-acknowledged mode with multiple source clusters, CSMA-CA interconnection performed in a more balanced way than GTS one, by deteriorating inter-cluster traffic and local traffic almost equally. The use of non-acknowledged transfer is preferred in all cases where the requirements of the sensing application allow it.