Analysis and Enhancement of IEEE 802.15.4e DSME Beacon Scheduling Model

Table 2

Mesh-based beacon scheduling.

Title (author)	Characteristics	Remarks
Burda and Wietfeld [12]	Proposes a random beacon slot assignment to construct autonomous and distributed mesh networks using a beacon-enabled mode.	(i) Requires a long time delay to complete an integrity check.; (ii) Has high collision probability among request packets
IEEE 802.15.5 [13]	Mesh network based on IEEE 802.15.4; (i) characterizes block address assignment; (ii) utilizes a connection matrix	Asynchronous energy saving in non-beacon-enabled mode might create unnecessary energy waste and delay
MeshMAC [14]	Distributed beacon scheduling for a mesh network	Does not address how to collect a neighboring beacon slot
IEEE P802.15.4e DSME [15]	Provides a concept level for bitmap-based distributed beacon scheduling	(i) Does not address SD slot selection methods; (ii) Correctness of the algorithm is not yet verified via experiments
DFBS [16]	Distributed, fast beacon scheduling for a mesh network; (i) bitmap-free beacon scheduling	(i) Proposing a conceptual model; (ii) Similar to IEEE 802.15.4e DSME except for using an indicator instead of a bitmap