| Research | Proposed model | Simulations | Set of conducted experiments | Purpose of link budget investigation | Validation | Applications |
| Irahhauten, Z. et al., 2008 | UWB link budget in near field nitially affected by the phase error dependent on the considered bandwidth. | The received power, as a function of distance for different dipole antennas, is compared with the result obtained from the calculation and simulation processes. | Measurements have been conducted at different distances using TD techniques. | Study the effects of antenna parameters, including size and distance between antennas | Validation has been achieved based on the agreement among calculated results, simulation, and experiments. | Extremely short WPAN applications |
| Volos, H.I. et al., 2009 [81] | The use of an antenna-pulse coupling gain for specific Tx-Rx pairs | None | Several TD measurements ranging from 1 m to 20 m to estimate the received Eb/No and to compare between the traditional Friss formula and the proposed coupling gain method | Overcome narrow-band limitation in traditional link budget by proposing the use of an antenna-pulse coupling gain to estimate the received power | Verification of the accuracy of the proposed method is achieved by several measurements taken from 1 m to 20 m. | Extremely short WPAN applications |
| Uengkittikul, P. and S. Promwong, 2009 | Investigations on free-space link budget evaluation scheme as the transmission gain of IR-UWB systems, which consider the distortion of the transmitted waveform caused by the antenna | None | Biconical antenna and periodic dipole antenna (LPDA) tested in the range of 1 GHz to 12.4 GHz to show the gain in different orientation angles | Evaluate link budget of IR-UWB as the effects of two broadband antennas on the gain of the transmitted waveform | Validation is achieved based on the comparison between two types of broadband antenna in terms of transmission gain. | Extremely short WPAN, with a distance of 1 m between sending and receiving antennas |
| Liu, L. et al., 2009 | Modeling human blockage effects in LOS UWB WiMedia communication link | Simulation has been carried out to evaluate human blockages in three WiMedia UWB radio link setups. | Tx and Rx antennas are fixed with a distance of 3 m, while a person stands between them to block the LOS and obtain channel statistical parameters. | Study the effect of human body blockages on the wireless link, and then modeling the channel and evaluating the performance | The proposed model is validated in different link budget setups with performance evaluation. | High-speed short-range wireless medical applications |
| Aubin LECOINTRE et al., 2008 | Reconfigurable IR-UWB hardware design for data rate, spectrum, and range | Simulations have been carried out as performance analysis with regard to BER in different IR-UWB settings | None | Global solution for distinct applications with different needs | Validation is achieved according to different budget link settings combined with the performance analysis for BER. | Wireless applications with different needs for data rates and power consumption |