Optimal Centralized Dynamic-Time-Division-Duplex

Coexistence of two time division duplex

Spectral Efficiency of Time Division Duplex Fixed Wireless Cellular System for Dynamic Traffic

We analyze spectral efficiency of a dynamic time division duplex system in a fixed wireless cellular network. Conventionally, spectral efficiency has been analyzed under static and fully-loaded conditions. In this paper, we investigate how asymmetric and dynamic traffic affects spectral efficiency of TDD systems. Recently, dynamic TDD (D-TDD) has gained much attention as an efficient duplex sch...

Bluetooth Time Division Duplex - Exact Analysis as a Polling System

Bluetooth enables wireless communication via ad-hoc networks. The basic network topology (piconet) is a collection of slaves controlled by a master. A scatternet is a multihop network of piconets. Efficient piconet and scatternet communication requires design of intra and inter-piconet scheduling algorithms. Thus, numerous scheduling algorithms have been recently proposed. Analytical performanc...

Power Control for Diversity Reception in Time-division Duplex Cdma

Power control possiblities are explored for the downlink of a Time-Division Duplex (TDD) CDMA system while employing three different kinds of multipath diversity combining schemes namely the RAKE, the pre-RAKE [2] and the transmit antenna pre-selection. In the latter two, knowledge of the channel characterstics is employed at the base-station to provide maximum decoupling between users on the d...

A Time Division Duplex CDMA System Using Asymmetric Modulation Scheme in Duplex Channel

Multi-carrier (MC) signal has a large peak to mean envelope power ratio, so that the MC signal suffers from a high level of inter-modulation distortion due to the nonlinearity of the power amplifier stage. For portable terminals, it is undesirable to use linear amplifiers because high power efficiency is needed. To solve this problem, we propose a time division duplex (TDD)–code division multip...