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One of the critical challenges for mobile operators is how to approach the problem of the anticipated increase in traffic. A solution to this growth involves providing more throughput on the transmission path. One of the ways this can be done is to use LTE-Advanced with the carrier aggregation technique. With this feature we can allocate radio spectrum more efficiently to independent carriers, increase...
LTE, that was introduced by the third generation partnership project (3GPP) in 2008, is a technology which improves capacity and quality of service (QoS) requirements in modern wireless networks. Due to rapid growth of multimedia services and online video games, resource allocation is very important for these delay sensitive applications. Therefore, scheduling algorithms which allocate radio resources...
Long Term Evolution (LTE) is a broadband wireless technology that promises to high throughput. In order to simultaneously support several mobile users with real time and non-real time applications, the resource management and Quality of Service (QoS) requirements of delay-sensitive traffic should be carefully aware. In this paper, The Delay-Aware with Resource Block Management Scheduling Algorithm...
In this paper proposed tail biting convolutional code decoder co-processor architecture design for high throughput AMBA bus based System on Chip. Proposed TBCC decoder configured for LTE application and integrated on Leon3 SoC. To support low complexity, reverse trellis algorithm choose as TBCC decoding algorithm. DMA used in integration process to ensure the inter-frame decoding process is continuous...
This paper presents the technical study of the Radio Access Network (RAN) migration from WiMAX to LTE for the Internet Service Provider (ISP) Yota de Nicaragua. For our analysis, we conducted a case study in the city of Masaya, Nicaragua using predictive tool Atoll™, where we describe and simulate two scenarios. The first scenario represents the current WiMAX (IEEE 802.16e) network deployed on the...
Network operators are constantly trying to increase their capacity and coverage at minimal cost. Femtocells are low cost base stations that are deployed indoors either by home users or by network operators to increase capacity and coverage. As femtocells are randomly deployed, this causes an increase in the interference. This ultimately reduces the quality of service (QoS) and also affects the fairness...
This paper provides an algorithm to calculate SINR and throughput gain in a combined cell of LTE network based on Radio Frequency (RF) scanner measurement data containing RSRP of the serving cell and neighbor cells. The combined cell, a feature of 3GPP standard, is the combination of multiple physical cells which operate at the same frequency into one cell in LTE network system. The combined cell...
LTE and WiMAX are the most important radio access technologies in the fourth generation mobile networks providing broadband access. The technologies bring strong QoS support, especially for multimedia services such as real-time video streaming, requiring bounded packet loss rate and delay. To reach these goals, effective packet scheduling schemes are needed to allocate radio resources. The function...
In recent years, people use multimedia applications which have become increasingly, such as watching IPTV or video streaming by smart phone. However, wireless user equipment (UE) is powered by battery which could only operate in a limited time. According those reasons, reducing the energy consumption of user equipment for communications is a major challenge. But in operator's opinion, they wish that...
LTE is a promising generation of mobile communication, characterized by high data rate, lower latency in control and user plane. In the study simulation model was developed for LTE system throughput estimation for different scheduling algorithms. Conclusion of the algorithms advantages and weaknesses were made.
The investigation of the LTE traffic channel blocking probability is presented in this paper. It is very important problem related to the effective utilization of physical resources in multiservice LTE networks. There will be shown the key motivation of moving to the direction of introducing the dynamic signaling and traffic channel resource relocation based on user demand.
Police departments and other law enforcement agencies have integrated a greater number of video cameras into their daily routines. This has introduced with it the problem of moving and processing vast amounts of video data. In this work, we take a look at some of the associated problems and our own attempts to address them. We first analyze the physical network and infrastructure at Temple University's...
As the perpetually increasing demands of users for high speed, higher data rates over wide bandwidths, lower system latencies in mobile communications, LTE/LTE-Advanced as a 4th Generation of Wireless networks infrastructures widely deployed to provide better support for these requirements. Carrier Ag-gregation(CA) is an important technology for LTE-A providing enhancements to peak data rates, both...
A method of passively estimating the resource block (RB) utilization rate of a serving cell according to radio-quality information measured by a user terminal is proposed. The estimated RB utilization rate can be regarded as the traffic load on the base station. The contribution of this paper is twofold: first, a method for passively estimating a traffic load on a base station via a user terminal...
LTE uses single carrier-frequency division multiple access (SC-FDMA) scheme for the uplink transmission which limits the flexibility of the allocation process as the sub carriers assigned to a single user have to be contiguous. We propose an LTE uplink interference-aware search-tree based scheduling scheme using the high interference indicator (HII) and the overload indicator (OI) messages that are...
Wireless virtualization has significant potential for improving the efficiency of resource utilization through spectrum sharing. However, several challenges exist in enabling/implementing virtualization over the current static cellular infrastructure. In the meantime, virtualization necessitates spectrum sharing and a collaborative network management entity that needs to provide efficient isolation...
4th Generation Long Term Evolution (4G LTE) networks are in commercial service in most countries around the globe, or about to be launched into commercial service. Given that LTE is about to become the global wireless technology of choice, these networks have to operate in any conceivable environment. In doing so, their backhaul transport is served by a wide variety of networks built on a mix of technologies...
With the Radio Access Network (RAN) market moving away from the use of special-purpose hardware and towards a cloud implementation, there are many challenges and opportunities apparent in this shift. Use of commodity processing hardware offers benefits but also challenges given the real-time nature of radio access networks. Centralized processing offers operational savings in system management and...
The knowledge of a future throughput value for a user equipment (UE) in Long Term Evolution (LTE) or any other transmission technology is very valuable. It can be used in rate adaptation algorithms so that radio channel congestions may be mitigated thus allowing for better quality of experience of the wireless user. Such control usually would happen at the application layer so that the control loops...
Spectrum Aggregation (SA) technology has been introduced in cellular standards: Long Term Evolution (LTE)-Advanced is expected to aggregate multiple Component Carriers (CC) to fulfill the high data rate requirement. In this paper, we use simulation to compare the performance of a cellular system using spectrum aggregation to systems that operates carriers independently, and to systems with contiguous...
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