New bluetooth inter-piconet schedule with a slave-to-slave piconet formation

C.P. Lafon, T.S. Durrani

Research output: Contribution to conferencePaper


The growing use of information intensive consumer devices such as cell phones, personal digital assistants (PDAs), and laptop computers have called for a new networking paradigm for their interconnection. Up to 8 Bluetooth devices can form a centralized network, called a piconet, controlled by a master node, which allocates transmission slots to all other nodes (slaves) in the piconet. Bluetooth achieves robustness against interference from nearby devices by employing a frequency hopping code division multiple access (FH-CDMA) technique. This facilitates a high density of communicating devices, making it possible for dozens of piconets to co-exist and independently communicate in close proximity without significant performance degradation. In this paper we investigate two important performance measures: the amount of time to form a scatternet to minimize the delay experienced by the user; and the number of messages sent between the devices. By reducing the number of messages sent, power consumption is conserved. We propose new policies where the slave could enter in contact with other slaves without passing through the master. This is an alternative approach to inter-piconet schedules: the SSPF (slave to slave piconet formation). These policies can have a significant impact on the packets delays, throughput and power management.

Original languageEnglish
Number of pages5
Publication statusPublished - Apr 2003
Event5th European Personal Mobile Communications Conference - Glasgow, United Kingdom
Duration: 22 Apr 200325 Apr 2003


Conference5th European Personal Mobile Communications Conference
Country/TerritoryUnited Kingdom


  • new bluetooth
  • inter-piconet schedule
  • slave-to-slave
  • piconet formation
  • bluetooth
  • scheduling
  • packet radio networks
  • frequency hop communication
  • code division multiple access


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