Data aggregation in wireless sensor networks eliminates redundancy to improve bandwidth
utilization and energy-efficiency of sensor nodes. This paper presents a secure energy …

Wireless sensor networks consist of many inexpensive wireless nodes, each having sensing
capability with some computational and communication power. Asymmetric cryptographic …

We propose an efficient code-assignment scheme utilizing multiple rake combiners to avoid
the code-blocking problem in third-generation (3G) and beyond wideband code-division …

The present invention is related to a method and apparatus for resource allocation in a
communication system as well as a radio network control node ad a radio access network …

Localization has many important applications in wireless sensor networks (WSNs). A variety
of technologies, such as acoustic, infrared, and UWB (ultra-wide band) media have been …

Orthogonal variable spreading factor (OVSF) codes are employed as channelization codes
in wideband CDMA. Any two OVSF codes are orthogonal if and only if one of them is not a …

Orthogonal variable spreading factor‐based code division multiple access systems allocate
vacant codes when new call (s) arrive. This study proposes a same rate assignment scheme …

Abstract Orthogonal Variable Spreading Factor (OVSF) codes are used in UMTS to share
the radio spectrum among several connections of possibly different bandwidth requirements …

Sažetak The data aggregation is a widely used mechanism in Wireless Sensor Networks
(WSNs) to increase lifetime of a sensor node, send robust information by avoiding redundant …

This paper presents an integrated solution for code management, assignment, and
reassignment problems in UMTS. We propose a new architecture for code management …