Research
- Adaptive Request Modeling in Clusters during Adverse States
- Improved Range Approximation in BLE Receivers
Published research paper that introduces methods to adapt to adverse cluster states of a distributed system in order to maximize success probability of http/tcp requests to the cluster. Two methods are talked about in the paper namely - Probabilistic Request Dispatch and Request Buffering.
Abstract: A distributed system consists of multiple nodes that share incoming load among themselves. In a centrally coordinated environment, the responsibility falls on a gateway to manage request dispatch to this cluster of nodes. In this paper, we propose an adaptive and uni fied approach to request dispatch to enhance decision making capabilities of such a gateway in case of partial and total cluster shutdown states. Using the described algorithms as a base, we derive a formula for landing probability on a node and explore its implication on various cluster states. We also show, via graphs, the request dispatch pattern when using this approach with adverse cluster states.
Published public proposal for improving range approximation in BLE (Bluetooth Low Energy) receivers. The relation between path attenuation and distance is derived using power formulas and equation parameters are calculated using experiments and multiple regressions.
Abstract: A BLE (short for Bluetooth Low Energy) transmitter is a radio-based system used to transfer few bytes of pre-programmed data to any other BLE device capable of receiving it. It relays a set of radio waves with frequency range of 2.4 GHz which consists of encoded information about fields necessary to recognize this device and make subsequent connections work. As with any energy transfer, there is bound to be a dissipation in its strength as the distance from the source increases. This power loss is usually caused by interference, diffraction or absorption of the transmitted signal. In this proposal, I am going to derive the relation of power attenuation with the distance of the receiver from the source using power formulas and share related findings.