Low latency IR-HARQ for multiband WLAN system

Achieving Low-latency Handoff through Two-Stage Authentication in WLAN

IEEE 802.11 WLANs are widely deployed nowadays. While a mobile device is moving around it may need to execute a handoff that usually requires authentication. This results in a long processing delay and leads to degradation of quality of service to the mobile device. Existing authentication methods such as AAA and IEEE 802.1x mechanisms are unable to accommodate low-latency handoff. In this arti...

Low Complexity Link Abstraction for Retransmission in LTE/LTE-Advanced with IR-HARQ

Recent wireless cellular systems, like 3GPP’s Long Term Evolution (LTE) and LTE-Advanced (LTE-A), benefit from many enhancements of wireless techniques. These include multicarrier modulation schemes, fast link adaptation, forward error correction with HARQ, powerful turbo codes and mutiple antenna techniques. System level simulators usually use link abstraction models for capturing the effects ...

Uplink HARQ for C-RAN via Low-Latency Local Feedback over MIMO Finite-Blocklength Links

The implementation of uplink HARQ in a CloudRadio Access Network RAN (C-RAN) architecture is constrained by the two-way latency on the fronthaul links connecting the Remote Radio Heads (RRHs) with the Baseband Units (BBUs) that perform decoding. To overcome this limitation, this work considers an architecture based on the separation of control and data planes, in which retransmission control de...

Multiband and Wideband Planar Antenna for WLAN and WiMAX Applications

Abstract—In this paper, the design of a multiband antenna for WLAN and WiMAX applications is proposed. The proposed antenna comprises a circular radiating patch with a pair of rectangular slits and an inverted U-shaped slot. A hexagon-shaped slot is cut on the ground plane. By adjusting the inverted U-shaped slot, a pair of rectangular slits, and a hexagon-shaped slot, three distinct resonance ...

Designing of Reconfigurable Multiband Antenna for WLAN Application