Manjunath Krishnam

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The emerging applications for 3G and 4G wireless systems typically require highly heterogeneous and time-varying quality of service from the underlying protocol layers. The wireless links, however, provide only an unreliable communication channel that suffers from temporal outages. As a consequence, protocol mechanisms are needed that, based on the(More)
Stabilizing the throughput over wireless links is one of the key challenges in providing high-quality wireless multimedia services. Wireless links are typically stabilized by a combination of link layer automatic repeat request (ARQ) mechanisms in conjunction with forward error correction and other physical layer techniques. In this paper we focus on the(More)
Stabilizing the throughput over wireless links is one of the key challenges in providing high-quality wireless multimedia services. Wireless links are typically stabilized by a combination of link-layer automatic repeat request (ARQ) mechanisms in conjunction with forward error correction and other physical layer techniques. In this paper, we focus on the(More)
Home networking is one of the most popular applications of power line communication (PLC) technologies. In the future, home networks will be required to simultaneously support both data and multimedia traffic. Unlike data, multimedia traffic requires guarantees on quality of service (QoS). The recently release HomePlug Standard, HomePlug AV (HPAV), uses a(More)
We study the capacity, i.e., the number of customers per cell, and the quality of service for streaming video in the uplink direction of a cellular Code Division Multiple Access (CDMA)–based wireless system. We advocate the use of TCP as the transport layer protocol for streaming video in a Multi–Code CDMA (MC–CDMA) wireless system. Our approach is to(More)
Simultaneous MAC Packet Transmission (SMPT) has recently been proposed for stabilizing the throughput over wireless links, which is one of the key challenges in providing high-quality wireless multimedia services. SMPT stabilizes the wireless link by transmitting multiple packets on multiple CDMA channels in parallel in response to packet drops due to(More)
Users in Next Generation Wireless Networks (NGWN) will have varied Quality of Service (QoS) requirements as the network operators are expected to offer plethora of services. The main objective of the network operators is to guarantee the agreed upon QoS to the users, at the same time maximize the revenue earned by having more number of users in the system.(More)
The rapid development of electronics and wireless communications led to great demand for wireless devices that can operate at different standards. In modern communication devices over conventional antenna, microstrip patch antenna is commonly used due to their low profile and low volume. In this speedy dynamical world in wireless communication high gain,(More)
Providing high and stable throughput over wireless links is one of the key challenges in wireless networks. Wireless links are typically stabilized by a combination of link layer automatic repeat request (ARQ) mechanisms in conjunction with forward error correction and other physical layer techniques. In this paper we focus on the ARQ component and present(More)
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