|
Mobile Video Performance Analysis: Technology and Methodology
As 4G networks proliferate, mobile service providers will need to differentiate on services beyond voice and data, and subscribers will accelerate the surge in mobile video usage. Expectations are rising and consumers will not watch or pay for poor quality video with distorted images, frozen and impaired frames or out-of sync audio. Metrico’s Video Quality Measurement System, Chromatic™, offers the most advanced, streamlined and cost-effective method to objectively measure video performance across all devices and access technologies.
|
|
Data Performance Measurement: Smartphone Case Study
To demonstrate the capabilities of Datum, Metrico's leading, centralized, large-scale data performance measurement system, we measured the data performance of three different devices with three different operating systems (iOS, Android, and Windows Phone) on one network. Testing was performed in several popular locations throughout London, U.K., approximating the experience of a typical mobile user. Despite differences in hardware and software, each device was subjected to the same test conditions using Datum. The results demonstrate how drastically data performance can vary between devices, even on the same network.
|
|
CDMA Voice Quality in Degraded Channel Conditions
This paper outlines methods for evaluating wireless handset performance and service quality through the analysis of voice quality measurements taken under degraded radio conditions. In particular, the paper considers voice quality measurements collected from handsets resident in a simulated radio environment. The paper also assesses the merits of voice quality measurements in lieu of radio parameters such as FER and Ec/Io.
|
|
GSM Voice Quality in Faded Channel Conditions
This paper outlines methods for evaluating wireless handset service quality through the analysis of voice quality measurements taken under faded channel conditions. In particular, the paper considers voice quality measurements collected from handsets resident in a simulated radio environment.
|
|
Metrico Wireless Call Performance
This document presents results of a call performance benchmarking study conducted on 4 handset models on a major US-based network. The field tests were performed from May 18th-June 29th, 2009. Approximately 1500 mobile originated calls (approximately 2250 minutes of call time) were placed on each handset tested.
The primary research questions the study sought to answer were:
- Are there quantifiable differences in behavior across handset models in their ability to access the network, particularly in marginal areas?
- Are there quantifiable differences in the ability of each handset model to retain calls once successfully initiated on the network?
- Do the push email capable handsets display poorer Call Initiation and Retention performance when subject to email traffic?
|
|
Mobile Handset Performance Evaluation Using Voice Quality
This paper outlines methods for evaluating wireless handset performance through the analysis of voice quality measurements. In particular, the paper considers voice quality measurements collected from live network tests that are designed to capture the user experience. Discussion on methods for voice quality measurement, field-based test procedures and performance indicators is presented.
|
|
Speech Quality in Noise Conditions - Bluetooth Performance
This case study outlines results from speech quality tests designed to evaluate the affects of using a Bluetooth accessory on speech quality. Specifically, the speech quality experienced by the “landline-listener” in communication with a wireless caller using a Bluetooth device is compared to the speech quality experienced by the landline listener in communication with a wireless caller that is speaking directly into a handset. The report also compares speech quality in noise conditions and presents methods for evaluating speech quality under such noise conditions.
|
