ABSTRACT:

In this paper, we investigate single user throughput optimization in High Speed Downlink Packet Access (HSDPA). Specifically, we propose offline and online optimization algorithms which adjust the Channel Quality Indicator (CQI) used by the network for scheduling of data transmission. In the offline algorithm, a given target block error rate (BLER) is achieved by adjusting CQI based on ACK/NAK history. By sweeping through different target BLERs, we can find the throughput optimal BLER offline. This algorithm could be used not only to optimize throughput but also to enable fair resource allocation among multiple users in HSDPA. In the online algorithm, the CQI offset is adapted using an estimated short term throughput gradient without the need for a target BLER. An adaptive stepsize mechanism is proposed to track temporal variation of the environment. Convergence behavior of both algorithms is analyzed. The part of the analysis that deals with constant step size gradient algorithm may be applied to other stochastic optimization techniques. The convergence analysis is confirmed by our simulations. Simulation results also yield valuable insights on the value of optimal BLER target. Both offline and online algorithms are shown to yield up to 25% of throughput improvement over the conventional approach of targeting 10% BLER.


Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here


PROJECT TITLE :Stable Throughput and Delay Analysis of a Random Access Network With Queue-Aware Transmission - 2018ABSTRACT:In this Project, we tend to contemplate a 2-user and a 3-user slotted ALOHA network with multi-packet
PROJECT TITLE :Optimal Throughput Fairness Tradeoffs for Downlink Non-Orthogonal Multiple Access Over Fading Channels - 2018ABSTRACT:Recently, non-orthogonal multiple access (NOMA) has attracted considerable interest jointly of
PROJECT TITLE :Maximum Secrecy Throughput of MIMOME FSO Communications With Outage Constraints - 2018ABSTRACT:During this Project, we have a tendency to contemplate a situation where two multiple-aperture legitimate nodes (Alice
PROJECT TITLE :Heterogeneous Networks With Power-Domain NOMA: Coverage, Throughput, and Power Allocation Analysis - 2018ABSTRACT:In a heterogeneous cellular network (HetNet), contemplate that a base station within the HetNet is
PROJECT TITLE :Maximizing Broadcast Throughput Under Ultra-Low-Power Constraints - 2018ABSTRACT:Wireless object-tracking applications are gaining popularity and can soon utilize emerging ultra-low-power deviceto-device communication.

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry