When cells of the cyanobacterium Synechocystis sp. PCC 6803 are exposed to high temperature they perceive changes in the growth conditions and regulate the expression of genes and synthesize heat-inducible proteins as a response to the heat stress. DNA microarray analysis revealed that genes for chaperonins and proteases, such as groESL1, groEL2, htpG, hspA, and clpB1 were transiently induced a...

A highly efficient self-provisioning interference management scheme is derived for 3G Home Node-Bs (HNB). The proposed scheme comprises self-adjustment of the HNB transmission parameters to meet the targeted QoS (quality of service) requirements in terms of downlink and uplink guaranteed minimum throughput and coverage. This objective is achieved by means of an autonomous HNB solution, where th...

Users expect mobile Internet access via 3G technologies to be comparable to wired access in terms of throughput and latency. HSPA achieves this for throughput, whereas delay is significantly higher. In this paper we measure the overall latency introduced by HSUPA and accurately dissect it into contributions of USB-modem (UE), base station (NodeB) and network controller (RNC). We achieve this by...

This paper presents a distributed software system for a wireless sensor network application that remotely monitors the effects of hurricane winds on manmade structures. The software system is divided into three independent segments that are distributed across the Internet to provide real-time collection and transmission of data between wireless remote sensor units and a centralized server. The ...

In the paper, we proposed a novel algorithm dedicated to adaptive video streaming based on HTTP. The algorithm employs a hybrid play-out strategy which combines two popular approaches: an estimation of network bandwidth and a control of a player buffer. The proposed algorithm was implemented in two versions which differ in the method of handling fluctuations of network throughput. The proposed ...

Video call capabilities in 3G mobile handsets and higher data rate in HSPA networks are fuelling resurgence in video telephony. This enables the delivery of exciting video applications to subscribers. The addition of Interactive Voice and Video Response (IVVR) opens up a wide stream of interactive video applications. In this paper we present a comparative study on the encoding tools and the tec...

This story has been happening as the demand for high-speed data increases and battery capacity has not matched advances with communications technology. It’s not the battery at fault but the technology needed to power the amplifier on the phone. For years, normal DC-DC converters managed the battery power flowing in the phone to different chips. This included the power amplifier (PA) for driving...

Multimedia delivery in mobile multiaccess network environments is gaining traction as a key area within the future Internet research domain. When network heterogeneity is coupled with the proliferation of multiaccess capabilities of mobile handheld devices, one can expect new avenues for the development of novel services and applications. In particular, novel mechanisms for audio/video delivery...

In a world with numerous heterogeneous wireless technologies (e.g. WLAN, HSPA, WiMAX, Bluetooth, etc.), devices such as cell phones and laptops are more and more often equipped with multiple communication interfaces. Motivated by this trend, major wireless providers, such as Telenor [1], are looking for solutions that can fully utilize multiple technologies when present. While the term multilin...

In today communication network the major challenges is to integrates a wide variety of serves, convey the more information as efficiently as possible through limited bandwidth and providing high data rates. Some of information bits are lost in most of the cases and signal which is sent originally will face fading. To reduce the bit error rate and signal fading require high data rate modulation ...