A performance evaluation of Internet access via the General Packet Radio Service of GSM

Hoff, S.; Meyer, Max; Schieder, Andreas

doi:10.1109/vetec.1998.686058

Cited by 15 publications

(5 citation statements)

References 5 publications

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“…The mapping of the channel SNR to the slot-error rate is beyond the scope of this paper. References [10] and [13] give such mapping between C/I to block error rate for various coding schemes.…”

Section: Analysis Of Gprs Mac Protocolmentioning

confidence: 99%

“…The average arrival rate to the system is given by (9) From Little's theorem, the average time an user spends in the system is given by the ratio between the number of users in the system to the average arrival rate. Hence (10) Note that the one in (10) is added to ensure that there is one slot delay for the mobiles to enter into the nonidle state.…”

Section: B Delay Analysismentioning

confidence: 99%

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Performance Analysis of RLC/MAC and LLC Layers in a GPRS Protocol Stack

Premkumar

Chockalingam

2004

IEEE Trans. Veh. Technol.

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Abstract-In this paper, we analyze the performance of various layers of the general packet radio service (GPRS) protocol stack, including radio link control/medium-access control (RLC/MAC) layer and logical link-control (LLC) layer on the uplink. In the GPRS MAC protocol, several time-slotted uplink radio-frequency channels are shared by the mobiles on a request-reservation-based multiple-access scheme. Using the theory of Markov chains, we derive expressions for the average throughput and delay performance of the GPRS MAC protocol. We evaluate the performance of the RLC layer (in acknowledged mode) using block-level retransmission (BLR), as defined in the current GPRS standard, and compare it with that of using slot-level retransmission (SLR). We show that SLR at the RLC layer performs significantly better than the BLR, particularly when the channel-error rates are moderate to high. We further investigate the choice of parameters (e.g., number of retransmission attempts) for the automatic repeat request schemes at the RLC and LLC layers. Our results show that it is more beneficial to do error recovery by allowing more retransmission attempts at the RLC layer than at the LLC layer. We also evaluate the performance of transmission-control protocol with BLR and SLR at the RLC layer.Index Terms-Automatic repeat request (ARQ), block-level retransmission (BLR), general packet radio service (GPRS), logical link control (LLC), radio link control/medium-access control (RLC/MAC), slot-level retransmission (SLR), transmission-control protocol (TCP).

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Section: Analysis Of Gprs Mac Protocolmentioning

confidence: 99%

Section: B Delay Analysismentioning

confidence: 99%

Performance Analysis of RLC/MAC and LLC Layers in a GPRS Protocol Stack

Premkumar

Chockalingam

2004

IEEE Trans. Veh. Technol.

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“…We can see from Figure 2a that there is a maximum value of the , which will be analytically derived next. The most likely number of RLC/MAC retransmissions per LLC frame-that is, the value of that maximizes -can readily be derived by differentiating with respect to in (4) or (8) and setting the obtained result equal to zero, yielding (11) where the square brackets [ ] denote the closest integer less than or equal to the term inside the brackets.…”

Section: Arq Mechanism At Rlc/macmentioning

confidence: 99%

“…Numerical simulations for the LLC transfer delay and throughput have also been presented elsewhere. [7][8][9][10][11] Here, we derive the LLC frame service time for a finite number of RLC/MAC retransmissions per LLC frame, , and for a radio channel characterized by a two-state Markov process (that is, it has good and bad states). The throughput per LLC frame is also derived.…”

Section: Channel-dependent Llc Protocolmentioning

confidence: 99%

LLC-MAC analysis of general packet radio service in GSM

Demetrescu¹

2002

Bell Labs Tech. J.

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“…The error model is based on a pre-simulated Block Error Rate (BLER) with curves produced from research work from Ericsson, see [9] for more details. These curves have also been adopted by a number of papers including research from [10] and [11].…”

Section: Iiia the Error Modelmentioning

confidence: 99%

Dynamic Coding Adaptation in a GPRS Network

Dantas¹,

Souza²

2002

Anais Do 2002 International Telecommunications Symposium

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New TDMA overlay packet switching networks such as the General Packet Radio Service (GPRS) and its enhanced mode (EDGE -Enhanced Data Rate GPRS Evolution) are being deployed for data users. These standards define a number of coding schemes (CS) to be used in accordance with the prevailing radio environment conditions, i.e., interference, noise and packet loss. Firstly, this work presents a smart dynamic CS allocation technique.Throughout this study user throughput is analyzed. The results show traffic optimization, a lower packet loss, as well as an increase in system capacity.

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A performance evaluation of Internet access via the General Packet Radio Service of GSM

Cited by 15 publications

References 5 publications

Performance Analysis of RLC/MAC and LLC Layers in a GPRS Protocol Stack

Performance Analysis of RLC/MAC and LLC Layers in a GPRS Protocol Stack

LLC-MAC analysis of general packet radio service in GSM

Dynamic Coding Adaptation in a GPRS Network

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