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On the Analysis of the Bluetooth Time Division Duplex Mechanism
| Content Provider | CiteSeerX |
|---|---|
| Abstract | Abstract — Efficient communication in Bluetooth networks requires design of intra and inter-piconet scheduling algorithms, and therefore, numerous algorithms have been proposed. However, due to complexities of the Bluetooth MAC, the performance of these algorithms has been analyzed mostly via simulation. We present analytic results regarding the exhaustive, gated, and limited (pure round robin) scheduling algorithms in piconets with bidirectional and unidirectional traffic. We show that a piconet operated according to the limited scheduling algorithm is equivalent to a 1–limited polling system and present exact results regarding symmetric piconets with bidirectional traffic. Then, the difficulties in analyzing the performance of the exhaustive and gated algorithms in a piconet with bidirectional traffic are demonstrated. In addition, we present exact analytic results for piconets with unidirectional traffic. We show that, surprisingly, in symmetrical piconets with only uplink traffic, the mean waiting time is the same for the exhaustive and limited algorithms. This observation results from the differences between piconets and traditional polling systems and can be extended for Time-Division-Duplex systems with arbitrary packet lengths. Furthermore, we show that the mean waiting time in a piconet with only uplink traffic is significantly higher than its corresponding value in a piconet with only downlink traffic. Finally, we numerically compare the exact results to approximate results, presented in the past. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Symmetrical Piconets Symmetric Piconets Present Analytic Result Mean Waiting Time Traditional Polling System Exact Analytic Result Observation Result Downlink Traffic Arbitrary Packet Length Bluetooth Time Division Duplex Mechanism Numerous Algorithm Bidirectional Traffic Time-division-duplex System Limited Polling System Present Exact Result Limited Algorithm Uplink Traffic Limited Scheduling Algorithm Bluetooth Mac Approximate Result Inter-piconet Scheduling Algorithm Gated Algorithm Pure Round Robin Abstract Efficient Communication Unidirectional Traffic Bluetooth Network |
| Content Type | Text |
