Delay-Accuracy Trade-off in Opportunistic Time-of-Arrival Localization
Research output: Contribution to journal › Article › Scientific › peer-review
|Journal||IEEE Signal Processing Letters|
|Early online date||14 Apr 2018|
|Publication status||Published - Jun 2018|
|Publication type||A1 Journal article-refereed|
While designing a positioning network, the localization performance is traditionally the main concern. However, collection of measurements together with channel access methods require a nonzero time, causing a delay experienced by network nodes. This fact is usually neglected in positioning-related literature. In terms of the delay-accuracy trade-off, broadcast schemes have an advantage over unicast, provided nodes can be properly synchronized. In this letter, we analyze the delay-accuracy trade-off, for localization schemes in which the position estimates are obtained based on broadcasted ranging signals. We find that for dense networks, the trade-off is the same for cooperative and noncooperative networks, and cannot exceed a certain threshold value.